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fzf(1) fzf - a command-line fuzzy finder fzf(1) NAME fzf - a command-line fuzzy finder SYNOPSIS fzf [options] DESCRIPTION fzf is an interactive filter program for any kind of list. It implements a "fuzzy" matching algorithm, so you can quickly type in patterns with omitted characters and still get the results you want. OPTIONS NOTE Most long options have the opposite version with --no- prefix. SEARCH -x, --extended Extended-search mode. Enabled by default. You can disable it with +x or --no-extended. -e, --exact Enable exact-match -i, --ignore-case Case-insensitive match (default: smart-case match) +i, --no-ignore-case Case-sensitive match --smart-case Smart-case match (default). In this mode, the search is case-in- sensitive by default, but it becomes case-sensitive if the query contains any uppercase letters. --literal Do not normalize latin script letters for matching. --scheme=SCHEME Choose scoring scheme tailored for different types of input. default Generic scoring scheme designed to work well with any type of input. path Additional bonus point is only given to the characters after path separator. You might want to choose this scheme over default if you have many files with spaces in their paths. This also sets --tiebreak=pathname,length, to prioritize matches occurring in the tail element of a file path. history Scoring scheme well suited for command history or any in- put where chronological ordering is important. No addi- tional bonus points are given so that we give more weight to the chronological ordering. This also sets --tiebreak=index. fzf chooses path scheme when the input is a TTY device, where fzf would start its built-in walker or run $FZF_DEFAULT_COMMAND, and there is no reload or transform action bound to start event. Otherwise, it chooses default scheme. --algo=TYPE Fuzzy matching algorithm (default: v2) v2 Optimal scoring algorithm (quality) v1 Faster but not guaranteed to find the optimal result (performance) -n, --nth=N[,..] Comma-separated list of field index expressions for limiting search scope. See FIELD INDEX EXPRESSION for the details. When you use this option with --with-nth, the field index expressions are calculated against the transformed lines (unlike in --pre- view where fields are extracted from the original lines) because fzf doesn't allow searching against the hidden fields. --with-nth=N[,..] or TEMPLATE Transform the presentation of each line using the field index expressions. For advanced transformation, you can provide a template containing field index expressions in curly braces. When you use a template, the trailing delimiter is stripped from each expression, giving you more control over the output. {n} in template evaluates to the zero-based ordinal index of the line. e.g. # Single expression: drop the first field echo foo bar baz | fzf --with-nth 2.. # Use template to rearrange fields echo foo,bar,baz | fzf --delimiter , --with-nth '{n},{1},{3},{2},{1..2}' change-with-nth action is only available when --with-nth is set. When --with-nth is used, fzf retains the original input lines in memory so they can be re-transformed on the fly (e.g. --with-nth .. to keep the original presentation). This increases memory us- age, so only use --with-nth when you actually need field trans- formation. --accept-nth=N[,..] or TEMPLATE Define which fields to print on accept. The last delimiter is stripped from the output. For advanced transformation, you can provide a template containing field index expressions in curly braces. When you use a template, the trailing delimiter is stripped from each expression, giving you more control over the output. {n} in template evaluates to the zero-based ordinal in- dex of the line. e.g. # Single expression echo foo bar baz | fzf --accept-nth 2 # Template echo foo bar baz | fzf --accept-nth 'Index: {n}, 1st: {1}, 2nd: {2}, 3rd: {3}' +s, --no-sort Do not sort the result -d, --delimiter=STR Field delimiter regex for --nth, --with-nth, and field index ex- pressions (default: AWK-style) --tail=NUM Maximum number of items to keep in memory. This is useful when you want to browse an endless stream of data (e.g. log stream) with fzf while limiting memory usage. e.g. # Interactive filtering of a log stream tail -f *.log | fzf --tail 100000 --tac --no-sort --exact --disabled Do not perform search. With this option, fzf becomes a simple selector interface rather than a "fuzzy finder". You can later enable the search using enable-search or toggle-search action. --tiebreak=CRI[,..] Comma-separated list of sort criteria to apply when the scores are tied. length Prefers line with shorter length chunk Prefers line with shorter matched chunk (delimited by whitespaces) pathname Prefers line with matched substring in the file name of the path begin Prefers line with matched substring closer to the be- ginning end Prefers line with matched substring closer to the end index Prefers line that appeared earlier in the input stream - Each criterion should appear only once in the list - index is only allowed at the end of the list - index is implicitly appended to the list when not specified - Default is length (or equivalently length,index) - If end is found in the list, fzf will scan each line backwards INPUT/OUTPUT --read0 Read input delimited by ASCII NUL characters instead of newline characters --print0 Print output delimited by ASCII NUL characters instead of new- line characters --ansi Enable processing of ANSI color codes --sync Synchronous search for multi-staged filtering. If specified, fzf will launch the finder only after the input stream is complete and the initial filtering and the associated actions (bound to any of start, load, result, or focus) are complete. e.g. # Avoid rendering both fzf instances at the same time fzf --multi | fzf --sync # fzf will not render intermediate states (sleep 1; seq 1000000; sleep 1) | fzf --sync --query 5 --listen --bind start:up,load:up,re- sult:up,focus:change-header:Ready --no-tty-default Make fzf search for the current TTY device via standard error instead of defaulting to /dev/tty. This option avoids issues when launching emacsclient from within fzf. Alternatively, you can change the default TTY device by setting --tty-default=DE- VICE_NAME. GLOBAL STYLE --style=PRESET Apply a style preset [default|minimal|full[:BORDER_STYLE]] --color=[BASE_SCHEME][,COLOR_NAME[:ANSI_COLOR][:ANSI_ATTRIBUTES]]... Color configuration. The name of the base color scheme is fol- lowed by custom color mappings. Each entry is separated by a comma and/or whitespaces. BASE SCHEME: (default: dark on 256-color terminal, otherwise base16; If NO_COLOR is set, bw) dark Color scheme for dark terminal light Color scheme for light terminal base16 Color scheme using base 16 colors (alias: 16) bw No colors (equivalent to --no-color) COLOR NAMES: fg Text list-fg Text in the list section selected-fg Selected line text preview-fg Preview window text bg Background list-bg List section background selected-bg Selected line background preview-bg Preview window background input-bg Input window background header-bg Header window background footer-bg Footer window background hl Highlighted substrings selected-hl Highlighted substrings in the selected line current-fg (fg+) Text (current line) current-bg (bg+) Background (current line) gutter Gutter on the left current-hl (hl+) Highlighted substrings (current line) alt-bg Alternate background color to create striped lines alt-gutter Alternate gutter color to create the striped pattern query (input-fg) Query string ghost Ghost text (--ghost, dim applied by default) disabled Query string when search is disabled (--disabled) info Info line (match counters) border Border around the window (--border and --preview) list-border Border around the list section (--list-border) scrollbar Scrollbar separator Horizontal separator on info line gap-line Horizontal line on each gap preview-border Border around the preview window (--preview) preview-scrollbar Scrollbar input-border Border around the input window (--in- put-border) header-border Border around the header window (--header-border) footer-border Border around the footer window (--footer-border) label Border label (--border-label, --list-label, --input-label, and --preview-label) list-label Border label of the list section (--list-label) preview-label Border label of the preview window (--preview-label) input-label Border label of the input window (--input-label) header-label Border label of the header window (--header-label) footer-label Border label of the footer window (--footer-label) prompt Prompt pointer Pointer to the current line marker Multi-select marker spinner Streaming input indicator header (header-fg) Header footer (footer-fg) Footer nth Parts of the line specified by --nth (only supports attributes) nomatch Non-matching items in raw mode (de- fault: dim) ANSI COLORS: -1 Default terminal foreground/background color (or the original color of the text) 0 ~ 15 16 base colors black red green yellow blue magenta cyan white bright-black (gray | grey) bright-red bright-green bright-yellow bright-blue bright-magenta bright-cyan bright-white 16 ~ 255 ANSI 256 colors #rrggbb 24-bit colors ANSI ATTRIBUTES: (Only applies to foreground colors) regular Clear previously set attributes; should precede the other ones strip Remove colors bold underline underline-double underline-curly underline-dotted underline-dashed reverse dim italic strikethrough EXAMPLES: # Seoul256 theme with 8-bit colors # (https://github.com/junegunn/seoul256.vim) fzf --color='bg:237,bg+:236,info:143,border:240,spin- ner:108' \ --color='hl:65,fg:252,header:65,fg+:252' \ --color='pointer:161,marker:168,prompt:110,hl+:108' # Seoul256 theme with 24-bit colors fzf --color='bg:#4B4B4B,bg+:#3F3F3F,info:#BDBB72,bor- der:#6B6B6B,spinner:#98BC99' \ --color='hl:#719872,fg:#D9D9D9,header:#719872,fg+:#D9D9D9' \ --color='pointer:#E12672,marker:#E17899,prompt:#98BEDE,hl+:#98BC99' # Seoul256 light theme with 24-bit colors, each entry sepa- rated by whitespaces fzf --style full --color=' fg:#616161 fg+:#616161 bg:#ffffff bg+:#e9e9e9 alt-bg:#f1f1f1 hl:#719872 hl+:#719899 pointer:#e12672 marker:#e17899 header:#719872 spinner:#719899 info:#727100 prompt:#0099bd query:#616161 border:#e1e1e1 ' --no-color Disable colors --no-bold Do not use bold text --black Use black background DISPLAY MODE --height=[~]HEIGHT[%] Display fzf window below the cursor with the given height in- stead of using the full screen. If a negative value is specified, the height is calculated as the terminal height minus the given value. fzf --height=-1 When prefixed with ~, fzf will automatically determine the height in the range according to the input size. # Will not take up 100% of the screen seq 5 | fzf --height=~100% Adaptive height has the following limitations: * Cannot be used with top/bottom margin and padding given in percent size * Negative value is not allowed * It will not find the right size when there are multi-line items --min-height=HEIGHT[+] Minimum height when --height is given as a percentage. Add + to automatically increase the value according to the other layout options so that the specified number of items are visible in the list section (default: 10+). Ignored when --height is not spec- ified or set as an absolute value. --tmux[=[center|top|bottom|left|right][,SIZE[%]][,SIZE[%]][,border-na- tive]] Start fzf in a tmux popup (default center,50%). Requires tmux 3.3 or later. This option is ignored if you are not running fzf inside tmux. e.g. # Popup in the center with 70% width and height fzf --tmux 70% # Popup on the left with 40% width and 100% height fzf --tmux right,40% # Popup on the bottom with 100% width and 30% height fzf --tmux bottom,30% # Popup on the top with 80% width and 40% height fzf --tmux top,80%,40% # Popup with a native tmux border in the center with 80% width and height fzf --tmux center,80%,border-native LAYOUT --layout=LAYOUT Choose the layout (default: default) default Display from the bottom of the screen reverse Display from the top of the screen reverse-list Display from the top of the screen, prompt at the bottom --reverse A synonym for --layout=reverse --margin=MARGIN Comma-separated expression for margins around the finder. TRBL Same margin for top, right, bottom, and left TB,RL Vertical, horizontal margin T,RL,B Top, horizontal, bottom margin T,R,B,L Top, right, bottom, left margin Each part can be given in absolute number or in percentage rela- tive to the terminal size with % suffix. e.g. fzf --margin 10% fzf --margin 1,5% --padding=PADDING Comma-separated expression for padding inside the border. Padding is distinguishable from margin only when --border option is used. e.g. fzf --margin 5% --padding 5% --border --preview 'cat {}' \ --color bg:#222222,preview-bg:#333333 TRBL Same padding for top, right, bottom, and left TB,RL Vertical, horizontal padding T,RL,B Top, horizontal, bottom padding T,R,B,L Top, right, bottom, left padding --border[=STYLE] Draw border around the finder rounded Border with rounded corners (default) sharp Border with sharp corners bold Border with bold lines double Border with double lines block Border using block elements; suitable when using different background colors thinblock Border using legacy computing symbols; may not be displayed on some terminals horizontal Horizontal lines above and below the finder vertical Vertical lines on each side of the finder line Single line border (position automatically deter- mined) top (up) bottom (down) left right none If you use a terminal emulator where each box-drawing character takes 2 columns, try setting --ambidouble. If the border is still not properly rendered, set --no-unicode. line style draws a single separator line at the top when --height is used. --border-label[=LABEL] Label to print on the horizontal border line. Should be used with one of the following --border options. * rounded * sharp * bold * double * horizontal * top (up) * bottom (down) e.g. # ANSI color codes are supported # (with https://github.com/busyloop/lolcat) label=$(curl -s http://metaphorpsum.com/sentences/1 | lolcat -f) # Border label at the center fzf --height=10 --border --border-label=" $label " --color=la- bel:italic:black # Left-aligned (positive integer) fzf --height=10 --border --border-label=" $label " --bor- der-label-pos=3 --color=label:italic:black # Right-aligned (negative integer) on the bottom line (:bot- tom) fzf --height=10 --border --border-label=" $label " --bor- der-label-pos=-3:bottom --color=label:italic:black --border-label-pos[=N[:top|bottom]] Position of the border label on the border line. Specify a posi- tive integer as the column position from the left. Specify a negative integer to right-align the label. Label is printed on the top border line by default, add :bottom to put it on the border line on the bottom. The default value 0 (or center) will put the label at the center of the border line. LIST SECTION -m, --multi[=MAX] Enable multi-select with tab/shift-tab. It optionally takes an integer argument which denotes the maximum number of items that can be selected. +m, --no-multi Disable multi-select --highlight-line Highlight the whole current line --cycle Enable cyclic scroll --wrap[=MODE] Enable line wrap. MODE can be char (default) or word. word mode wraps lines at word boundaries (spaces and tabs) instead of at arbitrary character positions. --wrap-word is a synonym for --wrap=word. --wrap-sign=INDICATOR Indicator for wrapped lines. The default is ' ' or '> ' depend- ing on --no-unicode. --no-multi-line Disable multi-line display of items when using --read0 --raw Enable raw mode where non-matching items are also displayed in a dimmed color. --track Make fzf track the current selection when the result list is up- dated. This can be useful when browsing logs using fzf with sorting disabled. It is not recommended to use this option with --tac as the resulting behavior can be confusing. Also, consider using track action instead of this option. e.g. git log --oneline --graph --color=always | nl | fzf --ansi --track --no-sort --layout=reverse-list --tac Reverse the order of the input e.g. history | fzf --tac --no-sort --gap[=N] Render empty lines between each item --gap-line[=STR] The given string will be repeated to draw a horizontal line on each gap (default: '' or '-' depending on --no-unicode). --freeze-left=N Number of fields to freeze on the left. --freeze-right=N Number of fields to freeze on the right. --keep-right Keep the right end of the line visible when it's too long. Ef- fective only when the query string is empty. Use --freeze-right=1 instead if you want the last field to be always visible even with a non-empty query. --scroll-off=LINES Number of screen lines to keep above or below when scrolling to the top or to the bottom (default: 3). --no-hscroll Disable horizontal scroll --hscroll-off=COLS Number of screen columns to keep to the right of the highlighted substring (default: 10). Setting it to a large value will cause the text to be positioned on the center of the screen. --jump-labels=CHARS Label characters for jump mode. --gutter=CHAR Character used for the gutter column (default: '' unless --no-unicode is given) --gutter-raw=CHAR Character used for the gutter column in raw mode (default: '' unless --no-unicode is given) --pointer=STR Pointer to the current line (default: '' or '>' depending on --no-unicode) --marker=STR Multi-select marker (default: '' or '>' depending on --no-uni- code) --marker-multi-line=STR Multi-select marker for multi-line entries. 3 elements for top, middle, and bottom. (default: '' or '.|'' depending on --no-unicode) --ellipsis=STR Ellipsis to show when line is truncated (default: '') --tabstop=SPACES Number of spaces for a tab character (default: 8) --scrollbar=CHAR1[CHAR2] Use the given character to render scrollbar. (default: '' or ':' depending on --no-unicode). The optional CHAR2 is used to render scrollbar of the preview window. --no-scrollbar Do not display scrollbar. A synonym for --scrollbar='' --list-border[=STYLE] Draw border around the list section. line style is not supported for this border. --list-label[=LABEL] Label to print on the list border --list-label-pos[=N[:top|bottom]] Position of the list label INPUT SECTION --no-input Disable and hide the input section. You can no longer type in queries. To trigger a search, use search action. You can later show the input section using show-input or toggle-input action, and hide it again using hide-input, or toggle-input. --prompt=STR Input prompt (default: '> ') --info=STYLE Determines the display style of the finder info. (e.g. match counter, loading indicator, etc.) default On the left end of the horizontal separator right On the right end of the horizontal separa- tor hidden Do not display finder info inline After the prompt with the default prefix ' < ' inline:PREFIX After the prompt with a non-default prefix inline-right On the right end of the prompt line inline-right:PREFIX On the right end of the prompt line with a custom prefix --info-command=COMMAND Command to generate the finder info line. The command runs syn- chronously and blocks the UI until completion, so make sure that it's fast. ANSI color codes are supported. $FZF_INFO variable is set to the original info text. For additional environment vari- ables available to the command, see the section ENVIRONMENT VARIABLES EXPORTED TO CHILD PROCESSES. e.g. # Prepend the current cursor position in yellow fzf --info-command='printf "\x1b[33;1m$FZF_POS\x1b[m/$FZF_INFO "' --no-info A synonym for --info=hidden --separator=STR The given string will be repeated to form the horizontal separa- tor on the info line (default: '' or '-' depending on --no-uni- code). ANSI color codes are supported. --no-separator Do not display horizontal separator on the info line. A synonym for --separator='' --ghost=TEXT Ghost text to display when the input is empty --filepath-word Make word-wise movements and actions respect path separators. The following actions are affected: backward-kill-word backward-word forward-word kill-word --input-border[=STYLE] Draw border around the input section. line style draws a single separator line between the input section and the list section. --input-label[=LABEL] Label to print on the input border --input-label-pos[=N[:top|bottom]] Position of the input label PREVIEW WINDOW --preview=COMMAND Execute the given command for the current line and display the result on the preview window. {} in the command is the place- holder that is replaced to the single-quoted string of the cur- rent line. To transform the replacement string, specify field index expressions between the braces (See FIELD INDEX EXPRESSION for the details). e.g. fzf --preview='head -$LINES {}' ls -l | fzf --preview="echo user={3} when={-4..-2}; cat {-1}" --header-lines=1 fzf exports $FZF_PREVIEW_LINES and $FZF_PREVIEW_COLUMNS so that they represent the exact size of the preview window. (It also overrides $LINES and $COLUMNS with the same values but they can be reset by the default shell, so prefer to refer to the ones with FZF_PREVIEW_ prefix.) fzf also exports $FZF_PREVIEW_TOP and $FZF_PREVIEW_LEFT so that the preview command can determine the position of the preview window. A placeholder expression starting with + flag will be replaced to the space-separated list of the selected items (or the cur- rent item if no selection was made) individually quoted. e.g. fzf --multi --preview='head -10 {+}' git log --oneline | fzf --multi --preview 'git show {+1}' Similarly, a placeholder expression starting with * flag will be replaced to the space-separated list of all matched items indi- vidually quoted. Each expression expands to a quoted string, so that it's safe to pass it as an argument to an external command. So you should not manually add quotes around the curly braces. But if you don't want this behavior, you can put r flag (raw) in the expression (e.g. {r}, {r1}, etc). Use it with caution as unquoted output can lead to broken commands. When using a field index expression, leading and trailing white- space is stripped from the replacement string. To preserve the whitespace, use the s flag. A placeholder expression with f flag is replaced to the path of a temporary file that holds the evaluated list. This is useful when you pass a large number of items and the length of the evaluated string may exceed ARG_MAX. e.g. # See the sum of all the matched numbers # This won't work properly without 'f' flag due to ARG_MAX limit. seq 100000 | fzf --preview "awk '{sum+=\$1} END {print sum}' {*f}" # Use {+f} to get the selected items as a line-separated list seq 100 | fzf --multi --bind 'enter:become:cat {+f}' Also, * {q} is replaced to the current query string * {q} can contain field index expressions. e.g. {q:1}, {q:2..}, etc. * {n} is replaced to the zero-based ordinal index of the current item. Use {+n} if you want all index numbers when multiple lines are selected. Note that you can escape a placeholder pattern by prepending a backslash. Preview window will be updated even when there is no match for the current query if any of the placeholder expressions evalu- ates to a non-empty string or {q} is in the command template. Since 0.24.0, fzf can render partial preview content before the preview command completes. ANSI escape sequence for clearing the display (CSI 2 J) is supported, so you can use it to implement preview window that is constantly updating. e.g. fzf --preview 'for i in $(seq 100000); do (( i % 200 == 0 )) && printf "\033[2J" echo "$i" sleep 0.01 done' fzf has experimental support for Kitty graphics protocol and Sixel graphics. The following example uses https://github.com/junegunn/fzf/blob/master/bin/fzf-preview.sh script to render an image using either of the protocols inside the preview window. e.g. fzf --preview='fzf-preview.sh {}' --preview-border[=STYLE] Short for --preview-window=border-STYLE. line style draws a sin- gle separator line between the preview window and the rest of the interface. --preview-label[=LABEL] Label to print on the horizontal border line of the preview win- dow. Should be used with one of the following --preview-window options. * border-rounded (default on non-Windows platforms) * border-sharp (default on Windows) * border-bold * border-double * border-block * border-thinblock * border-horizontal * border-top * border-bottom --preview-wrap-sign=INDICATOR Indicator for wrapped lines in the preview window. If not set, the value of --wrap-sign is used. --preview-label-pos[=N[:top|bottom]] Position of the border label on the border line of the preview window. Specify a positive integer as the column position from the left. Specify a negative integer to right-align the label. Label is printed on the top border line by default, add :bottom to put it on the border line on the bottom. The default value 0 (or center) will put the label at the center of the border line. --preview-window=[POSITION][,SIZE[%]][,bor- der-STYLE][,[no]wrap][,wrap-word][,[no]follow][,[no]cy- cle][,[no]info][,[no]hidden][,+SCROLL[OFFSETS][/DE- NOM]][,~HEADER_LINES][,default][,<SIZE_THRESHOLD(ALTERNATIVE_LAYOUT)] POSITION: (default: right) up down left right Determines the layout of the preview window. * If the argument contains :hidden, the preview window will be hidden by default until toggle-preview action is triggered. * If size is given as 0, preview window will not be visible, but fzf will still execute the command in the background. * Long lines are truncated by default. Line wrap can be enabled with wrap flag. wrap-word flag enables word-level wrapping, which breaks lines at word boundaries instead of mid-word. * Preview window will automatically scroll to the bottom when follow flag is set, similarly to how tail -f works. e.g. fzf --preview-window follow --preview 'for i in $(seq 100000); do echo "$i" sleep 0.01 (( i % 300 == 0 )) && printf "\033[2J" done' * Cyclic scrolling is enabled with cycle flag. * To hide the scroll offset information on the top right corner, specify noinfo. * To change the style of the border of the preview window, spec- ify one of the options for --border with border- prefix. e.g. border-rounded (border with rounded edges, default), bor- der-sharp (border with sharp edges), border-left, border-none, etc. * In addition to the other border styles, border-line style is also supported, which draws a single separator line between the preview window and the rest of the interface. * [:+SCROLL[OFFSETS][/DENOM]] determines the initial scroll off- set of the preview window. - SCROLL can be either a numeric integer or a single-field in- dex expression that refers to a numeric integer or {n} to refer to the zero-based ordinal index of the current item. - The optional OFFSETS part is for adjusting the base offset. It should be given as a series of signed integers (-INTEGER or +INTEGER). - The final /DENOM part is for specifying a fraction of the preview window height. * ~HEADER_LINES keeps the top N lines as the fixed header so that they are always visible. * default resets all options previously set to the default. e.g. # Non-default scroll window positions and sizes fzf --preview="head {}" --preview-window=up,30% fzf --preview="file {}" --preview-window=down,1 # Initial scroll offset is set to the line number of each line of # git grep output *minus* 5 lines (-5) git grep --line-number '' | fzf --delimiter : --preview 'nl {1}' --pre- view-window '+{2}-5' # Preview with bat, matching line in the middle of the window below # the fixed header of the top 3 lines # # ~3 Top 3 lines as the fixed header # +{2} Base scroll offset extracted from the sec- ond field # +3 Extra offset to compensate for the 3-line header # /2 Put in the middle of the preview area # git grep --line-number '' | fzf --delimiter : \ --preview 'bat --style=full --color=always --highlight-line {2} {1}' \ --preview-window '~3,+{2}+3/2' # Display top 3 lines as the fixed header fzf --preview 'bat --style=full --color=always {}' --preview-window '~3' * You can specify an alternative set of options that are used only when the size of the preview window is below a certain threshold. Note that only one alternative layout is allowed. e.g. fzf --preview 'cat {}' --preview-window 'right,bor- der-left,<30(up,30%,border-bottom)' HEADER --header=STR The given string will be printed as the sticky header. The lines are displayed in the given order from top to bottom regardless of --layout option, and are not affected by --with-nth. ANSI color codes are processed even when --ansi is not set. --header-lines=N The first N lines of the input are treated as the sticky header. When --with-nth is set, the lines are transformed just like the other lines that follow. --header-first Print header before the prompt line. When both normal header and header lines (--header-lines) are present, this applies only to the normal header. --header-border[=STYLE] Draw border around the header section. line style draws a single separator line between the header window and the list section. --header-label[=LABEL] Label to print on the header border --header-label-pos[=N[:top|bottom]] Position of the header label --header-lines-border[=STYLE] Display header from --header-lines with a separate border. Pass none to still separate the header lines but without a border. To combine two headers, use --no-header-lines-border. line style draws a single separator line between the header lines and the list section. FOOTER --footer=STR The given string will be printed as the sticky footer. The lines are displayed in the given order from top to bottom regardless of --layout option, and are not affected by --with-nth. ANSI color codes are processed even when --ansi is not set. --footer-border[=STYLE] Draw border around the footer section. line style draws a single separator line between the footer and the list section. --footer-label[=LABEL] Label to print on the footer border --footer-label-pos[=N[:top|bottom]] Position of the footer label SCRIPTING -q, --query=STR Start the finder with the given query -1, --select-1 If there is only one match for the initial query (--query), do not start interactive finder and automatically select the only match -0, --exit-0 If there is no match for the initial query (--query), do not start interactive finder and exit immediately -f, --filter=STR Filter mode. Do not start interactive finder. When used with --no-sort, fzf becomes a fuzzy-version of grep. --print-query Print query as the first line --expect=KEY[,..] Comma-separated list of keys that can be used to complete fzf in addition to the default enter key. When this option is set, fzf will print the name of the key pressed as the first line of its output (or as the second line if --print-query is also used). The line will be empty if fzf is completed with the default en- ter key. If --expect option is specified multiple times, fzf will expect the union of the keys. --no-expect will clear the list. e.g. fzf --expect=ctrl-v,ctrl-t,alt-s --expect=f1,f2,~,@ This option is not compatible with --bind on the same key and will take precedence over it. To combine the two, use print ac- tion. e.g. fzf --multi \ --bind 'enter:print()+accept,ctrl-y:se- lect-all+print(ctrl-y)+accept' --no-clear Do not clear finder interface on exit. If fzf was started in full screen mode, it will not switch back to the original screen, so you'll have to manually run tput rmcup to return. This option can be used to avoid flickering of the screen when your application needs to start fzf multiple times in order. (Note that in most cases, it is preferable to use reload action instead.) e.g. foo=$(seq 100 | fzf --no-clear) || ( # Need to manually switch back to the main screen when cancelled tput rmcup exit 1 ) && seq "$foo" 100 | fzf KEY/EVENT BINDING --bind=BINDINGS Comma-separated list of custom key/event bindings. See KEY/EVENT BINDINGS for the details. ADVANCED --with-shell=STR Shell command and flags to start child processes with. On *nix Systems, the default value is $SHELL -c if $SHELL is set, other- wise sh -c. On Windows, the default value is cmd /s/c when $SHELL is not set. --listen[=SOCKET_PATH|[ADDR:]PORT] --listen-unsafe[=[ADDR:]PORT] Start HTTP server and listen on the given address or Unix socket. It allows external processes to send actions to perform via POST method and query the program state via GET method. For the argument to be recognized as a socket path, it must have .sock extension. - If the port number is omitted or given as 0, fzf will automat- ically choose a port and export it as FZF_PORT environment vari- able to the child processes. - If a Unix socket path is given, fzf will create a Unix domain socket at the given path. The existing file will be removed. The path to the socket file is exported as FZF_SOCK environment variable. - If FZF_API_KEY environment variable is set, the server would require sending an API key with the same value in the x-api-key HTTP header. - FZF_API_KEY is required for a non-localhost listen address. - To allow remote process execution, use --listen-unsafe. e.g. # Start HTTP server on port 6266 fzf --listen 6266 # Send action to the server curl -XPOST localhost:6266 -d 'reload(seq 100)+change-prompt(hundred> )' # Start HTTP server on port 6266 with remote connections allowed # * Listening on non-localhost address requires using an API key export FZF_API_KEY="$(head -c 32 /dev/urandom | base64)" fzf --listen 0.0.0.0:6266 # Send an authenticated action curl -XPOST localhost:6266 -H "x-api-key: $FZF_API_KEY" -d 'change-query(yo)' # Choose port automatically and export it as $FZF_PORT to the child process fzf --listen --bind 'start:execute-silent:echo $FZF_PORT > /tmp/fzf-port' # Get program state in JSON format (experimental) # - GET Parameters: # - limit: number of items to return (default: 100) # - offset: number of items to skip (default: 0) curl localhost:6266 # Automatically select items with .txt extension fzf --multi --sync --listen --bind 'load:transform: pos=1 curl -s localhost:$FZF_PORT?limit=1000 | jq -r .matches[].text | while read -r text; do if [[ $text =~ \.txt$ ]]; then echo -n "+pos($pos)+select" fi pos=$((pos + 1)) done echo +first ' Here is an example script that uses a Unix socket instead of a TCP port. fzf --listen=/tmp/fzf.sock # GET curl --unix-socket /tmp/fzf.sock http # POST curl --unix-socket /tmp/fzf.sock http -d up --threads=N Number of matcher threads to use. The default value is min(8 * NUM_CPU, 32). --bench=DURATION Repeatedly run --filter for the given duration and print timing statistics. Must be used with --filter. e.g. cat /usr/share/dict/words | fzf --filter abc --bench 10s DIRECTORY TRAVERSAL --walker=[file][,dir][,follow][,hidden] Determines the behavior of the built-in directory walker that is used when $FZF_DEFAULT_COMMAND is not set. The default value is file,follow,hidden. * file: Include files in the search result * dir: Include directories in the search result * hidden: Include and follow hidden directories * follow: Follow symbolic links --walker-root=DIR [...] List of directory names to start the built-in directory walker. The default value is the current working directory. --walker-skip=DIRS Comma-separated list of directory names to skip during the di- rectory walk. The default value is .git,node_modules. HISTORY --history=HISTORY_FILE Load search history from the specified file and update the file on completion. When enabled, CTRL-N and CTRL-P are automati- cally remapped to next-history and prev-history. --history-size=N Maximum number of entries in the history file (default: 1000). The file is automatically truncated when the number of the lines exceeds the value. e.g. gem list | fzf --with-shell 'ruby -e' --preview 'pp Gem::Specification.find_by_name({1})' SHELL INTEGRATION --bash Print script to set up Bash shell integration e.g. eval "$(fzf --bash)" --zsh Print script to set up Zsh shell integration e.g. source <(fzf --zsh) --fish Print script to set up Fish shell integration e.g. fzf --fish | source OTHERS --no-mouse Disable mouse --no-unicode Use ASCII characters instead of Unicode drawing characters to draw borders, the spinner and the horizontal separator. --ambidouble Set this option if your terminal displays ambiguous width char- acters (e.g. box-drawing characters for borders) as 2 columns. HELP --version Display version information and exit --help Show help message --man Show man page ENVIRONMENT VARIABLES FZF_DEFAULT_COMMAND Default command to use when input is a TTY device. On *nix sys- tems, fzf runs the command with $SHELL -c if SHELL is set, oth- erwise with sh -c, so in this case make sure that the command is POSIX-compliant. FZF_DEFAULT_OPTS Default options. e.g. export FZF_DEFAULT_OPTS="--layout=reverse --border --cycle" FZF_DEFAULT_OPTS_FILE The location of the file that contains the default options. e.g. export FZF_DEFAULT_OPTS_FILE=~/.fzfrc FZF_API_KEY Can be used to require an API key when using --listen option. If not set, no authentication will be required by the server. You can set this value if you need to protect against DNS rebinding and privilege escalation attacks. EXIT STATUS 0 Normal exit 1 No match 2 Error 126 Permission denied error from become action 127 Invalid shell command for become action 130 Interrupted with CTRL-C or ESC FIELD INDEX EXPRESSION A field index expression can be a non-zero integer or a range expres- sion ([BEGIN]..[END]). --nth and --with-nth take a comma-separated list of field index expressions. Examples 1 The 1st field 2 The 2nd field -1 The last field -2 The 2nd to last field 3..5 From the 3rd field to the 5th field 2.. From the 2nd field to the last field ..-3 From the 1st field to the 3rd to the last field .. All the fields ENVIRONMENT VARIABLES EXPORTED TO CHILD PROCESSES fzf exports the following environment variables to its child processes. FZF_LINES Number of lines fzf takes up excluding padding and margin FZF_COLUMNS Number of columns fzf takes up excluding padding and margin FZF_DIRECTION Direction of the list (up or down) FZF_TOTAL_COUNT Total number of items FZF_MATCH_COUNT Number of matched items FZF_SELECT_COUNT Number of selected items FZF_POS Vertical position of the cursor in the list start- ing from 1 FZF_WRAP The line wrapping mode (char, word) when enabled FZF_QUERY Current query string FZF_INPUT_STATE Current input state (enabled, disabled, hidden) FZF_NTH Current --nth option FZF_WITH_NTH Current --with-nth option FZF_PROMPT Prompt string FZF_GHOST Ghost string FZF_POINTER Pointer string FZF_PREVIEW_LABEL Preview label string FZF_BORDER_LABEL Border label string FZF_LIST_LABEL List label string FZF_INPUT_LABEL Input label string FZF_HEADER_LABEL Header label string FZF_ACTION The name of the last action performed FZF_KEY The name of the last key pressed FZF_PORT Port number when --listen option is used FZF_SOCK Unix socket path when --listen option is used FZF_PREVIEW_TOP Top position of the preview window FZF_PREVIEW_LEFT Left position of the preview window FZF_PREVIEW_LINES Number of lines in the preview window FZF_PREVIEW_COLUMNS Number of columns in the preview window FZF_RAW Only in raw mode. 1 if the current item matches, 0 otherwise EXTENDED SEARCH MODE Unless specified otherwise, fzf will start in "extended-search mode". In this mode, you can specify multiple patterns delimited by spaces, such as: 'wild ^music .mp3$ sbtrkt !rmx You can prepend a backslash to a space (\ ) to match a literal space character. Exact-match (quoted) A term that is prefixed by a single-quote character (') is interpreted as an "exact-match" (or "non-fuzzy") term. fzf will search for the ex- act occurrences of the string. Anchored-match A term can be prefixed by ^, or suffixed by $ to become an anchored- match term. Then fzf will search for the lines that start with or end with the given string. An anchored-match term is also an exact-match term. Exact-boundary-match (quoted both ends) A single-quoted term is interpreted as an "exact-boundary-match". fzf will search for the exact occurrences of the string with both ends at the word boundaries. Unlike in regular expressions, this also sees an underscore as a word boundary. But the words around underscores are ranked lower and appear later in the result than the other words around the other types of word boundaries. 1. xxx foo xxx (highest score) 2. xxx foo_xxx 3. xxx_foo xxx 4. xxx_foo_xxx (lowest score) Negation If a term is prefixed by !, fzf will exclude the lines that satisfy the term from the result. In this case, fzf performs exact match by de- fault. Exact-match by default If you don't prefer fuzzy matching and do not wish to "quote" (prefix- ing with ') every word, start fzf with -e or --exact option. Note that when --exact is set, '-prefix "unquotes" the term. OR operator A single bar character term acts as an OR operator. For example, the following query matches entries that start with core and end with ei- ther go, rb, or py. e.g. ^core go$ | rb$ | py$ KEY/EVENT BINDINGS --bind option allows you to bind a key or an event to one or more ac- tions. You can use it to customize key bindings or implement dynamic behaviors. --bind takes a comma-separated list of binding expressions. Each bind- ing expression is KEY:ACTION or EVENT:ACTION. You can bind actions to multiple keys and events by writing comma-separated list of keys and events before the colon. e.g. KEY1,KEY2,EVENT1,EVENT2:ACTION. e.g. fzf --bind=ctrl-j:accept,ctrl-k:kill-line # Load 'ps -ef' output on start and reload it on CTRL-R fzf --bind 'start,ctrl-r:reload:ps -ef' AVAILABLE KEYS: (SYNONYMS) ctrl-[a-z] ctrl-space ctrl-delete ctrl-\ ctrl-] ctrl-^ (ctrl-6) ctrl-/ (ctrl-_) ctrl-alt-[a-z] (ctrl-alt-h is ctrl-alt-backspace on non-Windows) alt-[*] (Any case-sensitive single character is allowed) f[1-12] enter (return ctrl-m) space backspace (bspace bs) alt-up alt-down alt-left alt-right alt-home alt-end alt-backspace (alt-bspace alt-bs) alt-delete alt-page-up alt-page-down alt-enter alt-space tab shift-tab (btab) esc delete (del) up down left right home end insert page-up (pgup) page-down (pgdn) ctrl-up ctrl-down ctrl-left ctrl-right ctrl-home ctrl-end ctrl-backspace (ctrl-bspace ctrl-bs) ctrl-delete ctrl-page-up ctrl-page-down shift-up shift-down shift-left shift-right shift-home shift-end shift-delete shift-page-up shift-page-down alt-shift-up alt-shift-down alt-shift-left alt-shift-right alt-shift-home alt-shift-end alt-shift-delete alt-shift-page-up alt-shift-page-down ctrl-alt-up ctrl-alt-down ctrl-alt-left ctrl-alt-right ctrl-alt-home ctrl-alt-end ctrl-alt-backspace (ctrl-alt-bspace ctrl-alt-bs) (ctrl-alt-h (non-Win- dows)) ctrl-alt-delete ctrl-alt-page-up ctrl-alt-page-down ctrl-shift-up ctrl-shift-down ctrl-shift-left ctrl-shift-right ctrl-shift-home ctrl-shift-end ctrl-shift-delete ctrl-shift-page-up ctrl-shift-page-down ctrl-alt-shift-up ctrl-alt-shift-down ctrl-alt-shift-left ctrl-alt-shift-right ctrl-alt-shift-home ctrl-alt-shift-end ctrl-alt-shift-delete ctrl-alt-shift-page-up ctrl-alt-shift-page-down left-click right-click double-click scroll-up scroll-down preview-scroll-up preview-scroll-down shift-left-click shift-right-click shift-scroll-up shift-scroll-down or any single character Note that some terminal emulators may not support ctrl-* bindings. AVAILABLE EVENTS: start Triggered only once when fzf finder starts. Since fzf consumes the input stream asynchronously, the input list is not available unless you use --sync. e.g. # Move cursor to the last item and select all items seq 1000 | fzf --multi --sync --bind start:last+select-all load Triggered when the input stream is complete and the initial pro- cessing of the list is complete. e.g. # Change the prompt to "loaded" when the input stream is complete (seq 10; sleep 1; seq 11 20) | fzf --prompt 'Loading> ' --bind 'load:change-prompt:Loaded> ' resize Triggered when the terminal size is changed. e.g. fzf --bind 'resize:transform-header:echo Resized: ${FZF_COLUMNS}x${FZF_LINES}' result Triggered when the filtering for the current query is complete and the result list is ready. e.g. # Put the cursor on the second item when the query string is empty # * Note that you can't use 'change' event in this case be- cause the second position may not be available fzf --sync --bind 'result:transform:[[ -z {q} ]] && echo "pos(2)"' change Triggered whenever the query string is changed e.g. # Move cursor to the first entry whenever the query is changed fzf --bind change:first focus Triggered when the focus changes due to a vertical cursor move- ment or a search result update. e.g. fzf --bind 'focus:transform-preview-label:echo [ {} ]' --preview 'cat {}' # Any action bound to the event runs synchronously and thus can make the interface sluggish # e.g. lolcat isn't one of the fastest programs, and every cursor movement in # fzf will be noticeably affected by its execution time fzf --bind 'focus:transform-preview-label:echo [ {} ] | lolcat -f' --preview 'cat {}' # Beware not to introduce an infinite loop seq 10 | fzf --bind 'focus:up' --cycle multi Triggered when the multi-selection has changed. one Triggered when there's only one match. one:accept binding is comparable to --select-1 option, but the difference is that --select-1 is only effective before the interactive finder starts but one event is triggered by the interactive finder. e.g. # Automatically select the only match seq 10 | fzf --bind one:accept zero Triggered when there's no match. zero:abort binding is compara- ble to --exit-0 option, but the difference is that --exit-0 is only effective before the interactive finder starts but zero event is triggered by the interactive finder. e.g. # Reload the candidate list when there's no match echo $RANDOM | fzf --bind 'zero:reload(echo $RAN- DOM)+clear-query' --height 3 backward-eof Triggered when the query string is already empty and you try to delete it backward. e.g. fzf --bind backward-eof:abort jump Triggered when successfully jumped to the target item in jump mode. e.g. fzf --bind space:jump,jump:accept jump-cancel Triggered when jump mode is cancelled. e.g. fzf --bind space:jump,jump:accept,jump-cancel:abort click-header Triggered when a mouse click occurs within the header. Sets FZF_CLICK_HEADER_LINE and FZF_CLICK_HEADER_COLUMN environment variables starting from 1. It optionally sets FZF_CLICK_HEADER_WORD and FZF_CLICK_HEADER_NTH if clicked on a word. e.g. # Click on the header line to limit search scope ps -ef | fzf --style full --layout reverse --header-lines 1 \ --header-lines-border bottom --no-list-border \ --color fg:dim,nth:regular \ --bind 'click-header:transform-nth( echo $FZF_CLICK_HEADER_NTH )+transform-prompt( echo "$FZF_CLICK_HEADER_WORD> " )' click-footer Triggered when a mouse click occurs within the footer. Sets FZF_CLICK_FOOTER_LINE and FZF_CLICK_FOOTER_COLUMN environment variables starting from 1. It optionally sets FZF_CLICK_FOOTER_WORD if clicked on a word. AVAILABLE ACTIONS: A key or an event can be bound to one or more of the following actions. ACTION: DEFAULT BINDINGS (NOTES): abort ctrl-c ctrl-g ctrl-q esc accept enter double-click accept-non-empty (same as accept except that it pre- vents fzf from exiting without selection) accept-or-print-query (same as accept except that it prints the query when there's no match) backward-char ctrl-b left backward-delete-char ctrl-h ctrl-bspace bspace backward-delete-char/eof (same as backward-delete-char except aborts fzf if query is empty) backward-kill-subword backward-kill-word alt-bs backward-subword backward-word alt-b shift-left become(...) (replace fzf process with the speci- fied command; see below for the details) beginning-of-line ctrl-a home bell (ring the terminal bell) best (move to the best match; same as first if raw mode is disabled) bg-cancel (cancel background transform processes) cancel (clear query string if not empty, abort fzf otherwise) change-border-label(...) (change --border-label to the given string) change-ghost(...) (change ghost text to the given string) change-header(...) (change header to the given string; doesn't affect --header-lines) change-header-lines(N) (change the number of --header-lines) change-header-label(...) (change --header-label to the given string) change-input-label(...) (change --input-label to the given string) change-list-label(...) (change --list-label to the given string) change-multi (enable multi-select mode with no limit) change-multi(...) (enable multi-select mode with a limit or disable it with 0) change-nth(...) (change --nth option; rotate through the multiple options separated by '|') change-with-nth(...) (change --with-nth option; rotate through the multiple options separated by '|') change-pointer(...) (change --pointer option) change-preview(...) (change --preview option) change-preview-label(...) (change --preview-label to the given string) change-preview-window(...) (change --preview-window option; ro- tate through the multiple option sets separated by '|') change-prompt(...) (change prompt to the given string) change-query(...) (change query string to the given string) clear-screen ctrl-l clear-multi (clear multi-selection) close (close preview window if open, abort fzf otherwise) clear-query (clear query string) delete-char del delete-char/eof ctrl-d (same as delete-char except aborts fzf if query is empty) deselect deselect-all (deselect all matches; to also clear non-matching selections, use clear-multi) disable-raw (disable raw mode) disable-search (disable search functionality) down ctrl-j down down-match ctrl-n alt-down (move to the match below the cursor) down-selected (move to the selected item below the cursor) enable-raw (enable raw mode) enable-search (enable search functionality) end-of-line ctrl-e end exclude (exclude the current item from the re- sult) exclude-multi (exclude the selected items or the current item from the result) execute(...) (see below for the details) execute-silent(...) (see below for the details) first (move to the first match; same as pos(1)) forward-char ctrl-f right forward-subword forward-word alt-f shift-right ignore jump (EasyMotion-like 2-keystroke movement) kill-line kill-subword kill-word alt-d last (move to the last match; same as pos(-1)) next-history (ctrl-n on --history) next-selected (synonym to down-selected) page-down pgdn page-up pgup half-page-down half-page-up hide-header hide-input hide-preview offset-down (similar to CTRL-E of Vim) offset-up (similar to CTRL-Y of Vim) offset-middle (place the current item is in the mid- dle of the screen) pos(...) (move cursor to the numeric position; negative number to count from the end) prev-history (ctrl-p on --history) prev-selected (synonym to up-selected) preview(...) (see below for the details) preview-down shift-down preview-up shift-up preview-page-down preview-page-up preview-half-page-down preview-half-page-up preview-bottom preview-top print(...) (add string to the output queue and print on normal exit) put (put the character to the prompt) put(...) (put the given string to the prompt) refresh-preview rebind(...) (rebind bindings after unbind) reload(...) (see below for the details) reload-sync(...) (see below for the details) replace-query (replace query string with the current selection) search(...) (trigger fzf search with the given string) select select-all (select all matches) show-header show-input show-preview toggle (right-click) toggle-all (toggle all matches) toggle-in (--layout=reverse* ? toggle+up : tog- gle+down) toggle-out (--layout=reverse* ? toggle+down : toggle+up) toggle-bind toggle-header toggle-hscroll toggle-input toggle-multi-line toggle-preview toggle-preview-wrap toggle-preview-wrap-word toggle-raw (toggle raw mode for displaying non- matching items) toggle-search (toggle search functionality) toggle-sort toggle-track (toggle global tracking option (--track)) toggle-track-current (toggle tracking of the current item) toggle-wrap toggle-wrap-word ctrl-/ alt-/ toggle+down ctrl-i (tab) toggle+up btab (shift-tab) track-current (track the current item; automatically disabled if focus changes) transform(...) (transform states using the output of an external command) transform-border-label(...) (transform border label using an ex- ternal command) transform-ghost(...) (transform ghost text using an exter- nal command) transform-header(...) (transform header using an external command) transform-header-lines(...) (transform the number of --header-lines using an external command) transform-header-label(...) (transform header label using an ex- ternal command) transform-input-label(...) (transform input label using an exter- nal command) transform-list-label(...) (transform list label using an exter- nal command) transform-nth(...) (transform nth using an external com- mand) transform-with-nth(...) (transform with-nth using an external command) transform-pointer(...) (transform pointer using an external command) transform-preview-label(...) (transform preview label using an ex- ternal command) transform-prompt(...) (transform prompt string using an ex- ternal command) transform-query(...) (transform query string using an ex- ternal command) transform-search(...) (trigger fzf search with the output of an external command) trigger(...) (trigger actions bound to a comma-sep- arated list of keys and events) unbind(...) (unbind bindings) unix-line-discard ctrl-u unix-word-rubout ctrl-w untrack-current (stop tracking the current item; no-op if global tracking is enabled) up ctrl-k up up-match ctrl-p alt-up (move to the match above the cursor) up-selected (move to the selected item above the cursor) yank ctrl-y Each transform* action has a corresponding bg-transform* variant that runs the command in the background. ACTION COMPOSITION Multiple actions can be chained using + separator. e.g. fzf --multi --bind 'ctrl-a:select-all+accept' fzf --multi --bind 'ctrl-a:select-all' --bind 'ctrl-a:+accept' Any action after a terminal action that exits fzf, such as accept or abort, is ignored. ACTION ARGUMENT An action denoted with (...) suffix takes an argument. e.g. fzf --bind 'ctrl-a:change-prompt(NewPrompt> )' fzf --bind 'ctrl-v:preview(cat {})' --preview-window hidden If the argument contains parentheses, fzf may fail to parse the expres- sion. In that case, you can use any of the following alternative nota- tions to avoid parse errors. action-name[...] action-name{...} action-name<...> action-name~...~ action-name!...! action-name@...@ action-name#...# action-name$...$ action-name%...% action-name^...^ action-name&...& action-name*...* action-name;...; action-name/.../ action-name|...| action-name:... The last one is the special form that frees you from parse er- rors as it does not expect the closing character. The catch is that it should be the last one in the comma-separated list of key-action pairs. COMMAND EXECUTION With execute(...) action, you can execute arbitrary commands without leaving fzf. For example, you can turn fzf into a simple file browser by binding enter key to less command like follows. fzf --bind "enter:execute(less {})" You can use the same placeholder expressions as in --preview. fzf switches to the alternate screen when executing a command. However, if the command is expected to complete quickly, and you are not inter- ested in its output, you might want to use execute-silent instead, which silently executes the command without the switching. Note that fzf will not be responsive until the command is complete. For asynchro- nous execution, start your command as a background process (i.e. ap- pending &). On *nix systems, fzf runs the command with $SHELL -c if SHELL is set, otherwise with sh -c, so in this case make sure that the command is POSIX-compliant. become(...) action is similar to execute(...), but it replaces the cur- rent fzf process with the specified command using execve(2) system call. fzf --bind "enter:become(vim {})" RELOAD INPUT reload(...) action is used to dynamically update the input list without restarting fzf. It takes the same command template with placeholder ex- pressions as execute(...). See https://github.com/junegunn/fzf/issues/1750 for more info. e.g. # Update the list of processes by pressing CTRL-R ps -ef | fzf --bind 'ctrl-r:reload(ps -ef)' --header 'Press CTRL-R to reload' \ --header-lines=1 --layout=reverse # Integration with ripgrep RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case " INITIAL_QUERY="foobar" FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \ fzf --bind "change:reload:$RG_PREFIX {q} || true" \ --ansi --disabled --query "$INITIAL_QUERY" reload-sync(...) is a synchronous version of reload that replaces the list only when the command is complete. This is useful when the command takes a while to produce the initial output and you don't want fzf to run against an empty list while the command is running. e.g. # You can still filter and select entries from the initial list for 3 seconds seq 100 | fzf --bind 'load:reload-sync(sleep 3; seq 1000)+un- bind(load)' TRANSFORM ACTIONS Actions with transform- prefix are used to transform the states of fzf using the output of an external command. The output of these commands are expected to be a single line of text. e.g. fzf --bind 'focus:transform-header:file --brief {}' transform(...) action runs an external command that should print a se- ries of actions to be performed. The output should be in the same for- mat as the payload of HTTP POST request to the --listen server. e.g. # Disallow selecting an empty line printf "1. Hello\n2. Goodbye\n\n3. Exit" | fzf --height '~100%' --reverse --header 'Select one' \ --bind 'enter:transform:[[ -n {} ]] && echo accept || echo "change-header:Invalid selection"' A common mistake when writing a transform action is not escaping place- holder expressions when passing them back to fzf. In the following ex- ample, if you don't escape {}, fzf will immediately replace it with the single-quoted string of the current item. This causes single quotes to appear in the header and footer, and the script will break if any item contains double-quote characters. fzf --bind 'focus:transform:[[ $FZF_ACTION =~ up ]] && echo "change-header()+transform-footer:echo \{}" || echo "change-footer()+transform-header:echo \{}"' TRANSFORM IN THE BACKGROUND Transform actions are synchronous, meaning fzf becomes unresponsive while the command runs. To avoid this, each transform* action has a corresponding bg-transform* variant that runs in the background. Unless you need to chain multiple transform actions where later ones depend on earlier results, prefer using the bg variant. To cancel currently run- ning background transform processes, use bg-cancel action. PREVIEW BINDING With preview(...) action, you can specify multiple different preview commands in addition to the default preview command given by --preview option. e.g. # Default preview command with an extra preview binding fzf --preview 'file {}' --bind '?:preview:cat {}' # A preview binding with no default preview command # (Preview window is initially empty) fzf --bind '?:preview:cat {}' # Preview window hidden by default, it appears when you first hit '?' fzf --bind '?:preview:cat {}' --preview-window hidden CHANGE PREVIEW WINDOW ATTRIBUTES change-preview-window action can be used to change the properties of the preview window. Unlike the --preview-window option, you can specify multiple sets of options separated by '|' characters. e.g. # Rotate through the options using CTRL-/ fzf --preview 'cat {}' --bind 'ctrl-/:change-preview-win- dow(right,70%|down,40%,border-horizontal|hidden|right)' # The default properties given by `--preview-window` are inher- ited, so an empty string in the list is interpreted as the default fzf --preview 'cat {}' --preview-window 'right,40%,border-left' --bind 'ctrl-/:change-preview-window(70%|down,border-top|hidden|)' # This is equivalent to toggle-preview action fzf --preview 'cat {}' --bind 'ctrl-/:change-preview-window(hid- den|)' AUTHOR Junegunn Choi (junegunn.c@gmail.com) SEE ALSO Project homepage: https://github.com/junegunn/fzf Extra Vim plugin: https://github.com/junegunn/fzf.vim LICENSE MIT fzf 0.70.0 Mar 2026 fzf(1)
NAME | SYNOPSIS | DESCRIPTION | OPTIONS | ENVIRONMENT VARIABLES | EXIT STATUS | FIELD INDEX EXPRESSION | ENVIRONMENT VARIABLES EXPORTED TO CHILD PROCESSES | EXTENDED SEARCH MODE | KEY/EVENT BINDINGS | AUTHOR | SEE ALSO | LICENSE
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