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CHA(1) General Commands Manual CHA(1) NAME cha - the Chawan text-mode browser SYNOPSIS cha [options] [URL(s) or file(s)...] DESCRIPTION Chawan is a text-mode browser. It can be used as a pager, or as a web/(S)FTP/gopher/gemini/file browser. It understands HTML and CSS, and when enabled by the user, can also execute JavaScript and display images (on terminals supporting Sixel or the Kitty image protocol.) Chawan can also be used as a general text-based document viewer as de- scribed in cha-mailcap(5), or as a hyperlinked man page viewer using mancha(1). This document describes the invocation of Chawan. For a list of de- fault keybindings, type cha about:chawan. For a detailed description of the configuration format, see cha-config(5). ARGUMENTS On invocation, Chawan attempts to open all URL/file arguments supplied. If no URLs could successfully be opened, Chawan exits automatically. Chawan may also be started without specifying a file, if a file is pro- vided through a pipe. In this case, you can specify the content type using the -T switch. OPTIONS All command line options have short forms (e.g. -d) and long forms (e.g. --dump). Long forms must be introduced with two dashes; when only a single dash is provided, each letter is parsed as a separate short form. In short form, it is also valid to provide values to arguments without a subsequent space. For example, -obuffer.images=true is valid. -c, --css stylesheet Temporarily modify the user stylesheet. If a user stylesheet is already being used, the stylesheet given is appended to that. -d, --dump Start in headless mode, and sequentially print the opened files to stdout. This option is implicitly enabled if stdout is not a tty (e.g. when piping cha output). -h, --help Print a short version of this page, then exit. -o, --opt config Pass temporary configuration options. This accepts the configu- ration format described in cha-config(5), so the passed string must be valid TOML. To ease specifying string parameters, unrecognized bare keywords are converted to strings. So this works: --opt display.color-mode=eight-bit. However, symbols and words starting with a number must still be quoted. (This means that you have to quote them twice to bypass shell quoting.) -r, --run script/file Execute the string provided as a JS script, or execute the sup- plied JS file. If the file ends in .mjs, it is executed as an ES module. -v, --version Print information about the browser's version, then exit. -C, --config file Override the default configuration search path. Both absolute and relative paths are allowed. -I, --input-charset charset Override the character set of all input files. Useful when Chawan is incorrectly recognizing the input character set. (If this happens often, consider changing the default input charset recognition list encoding.document-charset in the con- figuration.) -M, --monochrome Force monochrome output. Formatting (bold/italic/etc.) is not affected. This is a shortcut for -o display.color-mode=mono- chrome. -O, --output-charset charset Override the output character set. This is a shortcut for -o encoding.display-charset=charset. -T, --type content-type Override the content type of all input files. Useful when the content type cannot be guessed from the file extension, or when reading a non-plaintext file from stdin. -V, --visual When no files/URLs are passed, open the page specified in start.visual-home instead of printing a help screen. -- Interpret all following arguments as files. For example, you can open a file named -o, using cha -- -o. ENVIRONMENT Certain environment variables are read and used by Chawan. TMPDIR When set, the default configuration stores temporary files in- side this directory (and /tmp/cha-tmp-user otherwise.) HTTP_HOME, WWW_HOME When set, Chawan starts in visual mode by default and opens the page specified by one of these variables. HTTP_HOME takes precedence over WWW_HOME. CHA_DIR When set, it switches the configuration directory to the path specified. COLORTERM When set to 24bit or truecolor, and the display.color-mode con- figuration option is set to auto, Chawan sets the color mode to true color. TERM Used by Chawan to determine which termcap entry to load. When not set, defaults to xterm. EDITOR Used to determine the editor to use when the external.editor configuration option is not set. LINES, COLUMNS Used as fallback values when window size detection fails. SEE ALSO mancha(1), cha-config(5), cha-mailcap(5), cha-mime.types(5), cha-localcgi(5), cha-urimethodmap(5), cha-protocols(7), cha-image(7), cha-css(7), cha-troubleshooting(7), cha-terminal(7) CHA(1)
NAME | SYNOPSIS | DESCRIPTION | ARGUMENTS | OPTIONS | ENVIRONMENT | SEE ALSO
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