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STAT(1) General Commands Manual STAT(1) NAME stat, readlink -- display file status SYNOPSIS stat [-FHhLnq] [-f format | -l | -r | -s | -x] [-t timefmt] [file ...] readlink [-fn] [file ...] DESCRIPTION The stat utility displays information about the file pointed to by file. Read, write, or execute permissions of the named file are not required, but all directories listed in the pathname leading to the file must be search- able. If no argument is given, stat displays information about the file descriptor for standard input. When invoked as readlink, only the target of the symbolic link is printed. If the given argument is not a symbolic link and the -f option is not spec- ified, readlink will print nothing and exit with an error. If the -f op- tion is specified, the output is canonicalized by following every symlink in every component of the given path recursively. readlink will resolve both absolute and relative paths, and return the absolute pathname corre- sponding to file. In this case, the argument does not need to be a sym- bolic link. The information displayed is obtained by calling lstat(2) with the given argument and evaluating the returned structure. The default format dis- plays the st_dev, st_ino, st_mode, st_nlink, st_uid, st_gid, st_rdev, st_size, st_atime, st_mtime, st_ctime, st_birthtime, st_blksize, st_blocks, and st_flags fields, in that order. The options are as follows: -F As in ls(1), display a slash (`/') immediately after each pathname that is a directory, an asterisk (`*') after each that is exe- cutable, an at sign (`@') after each symbolic link, a percent sign (`%') after each whiteout, an equal sign (`=') after each socket, and a vertical bar (`|') after each that is a FIFO. The use of -F implies -l. -H Treat each argument as the hexadecimal representation of an NFS file handle, and use fhstat(2) instead of lstat(2). This requires root privileges. -h For each file argument, print a line consisting of a comma-sepa- rated list of holes, a space, and the file name. Each hole is re- ported as its starting offset as a decimal number followed by a hy- phen and the ending offset (one less than the starting offset of the data region that follows the hole) as a decimal number. If the file ends in a hole, the ending offset of the final hole will be one less than the size of the file. Otherwise, the final entry in the list (indeed, the only entry in the list, if the file is not sparse), is a single decimal number corresponding to the size of the file, representing the virtual hole at the end of the file. If the argument is a directory, instead of a list of holes, a sin- gle number is printed, corresponding to the minimum hole size for that directory as reported by pathconf(2), followed by a space and the directory name. Please note that the only way to retrieve information about the holes in a file is to open it and walk the list of holes and data regions using lseek(2). If the file is being modified by another process at the same time as stat is inspecting it, the result may be inconsistent. This option cannot be combined with the -F, -f, -H, -L, -l, -r, -s, -t, or -x options. -L Use stat(2) instead of lstat(2). The information reported by stat will refer to the target of file, if file is a symbolic link, and not to file itself. If the link is broken or the target does not exist, fall back on lstat(2) and report information about the link. -n Do not force a newline to appear at the end of each piece of out- put. -q Suppress failure messages if calls to stat(2) or lstat(2) fail. When run as readlink, error messages are automatically suppressed. -f format Display information using the specified format. See the "Formats" section for a description of valid formats. -l Display output in ls -lT format. -r Display raw information. That is, for all the fields in the stat structure, display the raw, numerical value (for example, times in seconds since the epoch, etc.). -s Display information in "shell output" format, suitable for initial- izing variables. -t timefmt Display timestamps using the specified format. This format is passed directly to strftime(3). -x Display information in a more verbose way as known from some Linux distributions. Formats Format strings are similar to printf(3) formats in that they start with %, are then followed by a sequence of formatting characters, and end in a character that selects the field of the struct stat which is to be format- ted. If the % is immediately followed by one of n, t, %, or @, then a new- line character, a tab character, a percent character, or the current file number is printed, otherwise the string is examined for the following: Any of the following optional flags: # Selects an alternate output form for octal and hexadecimal output. Non-zero octal output will have a leading zero, and non-zero hexa- decimal output will have "0x" prepended to it. + Asserts that a sign indicating whether a number is positive or neg- ative should always be printed. Non-negative numbers are not usu- ally printed with a sign. - Aligns string output to the left of the field, instead of to the right. 0 Sets the fill character for left padding to the `0' character, in- stead of a space. space Reserves a space at the front of non-negative signed output fields. A `+' overrides a space if both are used. Then the following fields: size An optional decimal digit string specifying the minimum field width. prec An optional precision composed of a decimal point `.' and a decimal digit string that indicates the maximum string length, the number of digits to appear after the decimal point in floating point out- put, or the minimum number of digits to appear in numeric output. fmt An optional output format specifier which is one of D, O, U, X, F, or S. These represent signed decimal output, octal output, un- signed decimal output, hexadecimal output, floating point output, and string output, respectively. Some output formats do not apply to all fields. Floating point output only applies to timespec fields (the a, m, and c fields). The special output specifier S may be used to indicate that the output, if applicable, should be in string format. May be used in combination with: amc Display date in strftime(3) format. dr Display actual device name. f Display the flags of file as in ls -lTdo. gu Display group or user name. p Display the mode of file as in ls -lTd. N Displays the name of file. T Displays the type of file. Y Insert a " -> " into the output. Note that the default output format for Y is a string, but if specified explic- itly, these four characters are prepended. sub An optional sub field specifier (high, middle, low). Only applies to the p, d, r, and T output formats. It can be one of the follow- ing: H "High" -- specifies the major number for devices from r or d, the "user" bits for permissions from the string form of p, the file "type" bits from the numeric forms of p, and the long output form of T. L "Low" -- specifies the minor number for devices from r or d, the "other" bits for permissions from the string form of p, the "user", "group", and "other" bits from the numeric forms of p, and the ls -F style output character for file type when used with T (the use of L for this is optional). M "Middle" -- specifies the "group" bits for permissions from the string output form of p, or the "suid", "sgid", and "sticky" bits for the numeric forms of p. datum A required field specifier, being one of the following: d Device upon which file resides (st_dev). i file's inode number (st_ino). p File type and permissions (st_mode). l Number of hard links to file (st_nlink). u, g User ID and group ID of file's owner (st_uid, st_gid). r Device number for character and block device special files (st_rdev). a, m, c, B The time file was last accessed or modified, or when the inode was last changed, or the birth time of the inode (st_atime, st_mtime, st_ctime, st_birthtime). z The size of file in bytes (st_size). b Number of blocks allocated for file (st_blocks). k Optimal file system I/O operation block size (st_blksize). f User defined flags for file. v Inode generation number (st_gen). The following five field specifiers are not drawn directly from the data in struct stat, but are: N The name of the file. R The absolute pathname corresponding to the file. T The file type, either as in ls -F or in a more descriptive form if the sub field specifier H is given. Y The target of a symbolic link. Z Expands to "major,minor" from the rdev field for character or block special devices and gives size output for all oth- ers. Only the % and the field specifier are required. Most field specifiers de- fault to U as an output form, with the exception of p which defaults to O; a, m, and c which default to D; and Y, T, and N which default to S. EXIT STATUS The stat and readlink utilities exit 0 on success, and >0 if an error oc- curs. EXAMPLES If no options are specified, the default format is "%d %i %Sp %l %Su %Sg %r %z \"%Sa\" \"%Sm\" \"%Sc\" \"%SB\" %k %b %#Xf %N". > stat /tmp/bar 0 78852 -rw-r--r-- 1 root wheel 0 0 "Jul 8 10:26:03 2004" "Jul 8 10:26:03 2004" "Jul 8 10:28:13 2004" "Jan 1 09:00:00 1970" 16384 0 0 /tmp/bar Given a symbolic link "foo" that points from /tmp/foo to /, you would use stat as follows: > stat -F /tmp/foo lrwxrwxrwx 1 jschauma cs 1 Apr 24 16:37:28 2002 /tmp/foo@ -> / > stat -LF /tmp/foo drwxr-xr-x 16 root wheel 512 Apr 19 10:57:54 2002 /tmp/foo/ To initialize some shell variables, you could use the -s flag as follows: > csh % eval set `stat -s .cshrc` % echo $st_size $st_mtimespec 1148 1015432481 > sh $ eval $(stat -s .profile) $ echo $st_size $st_mtimespec 1148 1015432481 In order to get a list of file types including files pointed to if the file is a symbolic link, you could use the following format: $ stat -f "%N: %HT%SY" /tmp/* /tmp/bar: Symbolic Link -> /tmp/foo /tmp/output25568: Regular File /tmp/blah: Directory /tmp/foo: Symbolic Link -> / In order to get a list of the devices, their types and the major and minor device numbers, formatted with tabs and linebreaks, you could use the fol- lowing format: stat -f "Name: %N%n%tType: %HT%n%tMajor: %Hr%n%tMinor: %Lr%n%n" /dev/* [...] Name: /dev/wt8 Type: Block Device Major: 3 Minor: 8 Name: /dev/zero Type: Character Device Major: 2 Minor: 12 In order to determine the permissions set on a file separately, you could use the following format: > stat -f "%Sp -> owner=%SHp group=%SMp other=%SLp" . drwxr-xr-x -> owner=rwx group=r-x other=r-x In order to determine the three files that have been modified most re- cently, you could use the following format: > stat -f "%m%t%Sm %N" /tmp/* | sort -rn | head -3 | cut -f2- Apr 25 11:47:00 2002 /tmp/blah Apr 25 10:36:34 2002 /tmp/bar Apr 24 16:47:35 2002 /tmp/foo To display a file's modification time: > stat -f %m /tmp/foo 1177697733 To display the same modification time in a readable format: > stat -f %Sm /tmp/foo Apr 27 11:15:33 2007 To display the same modification time in a readable and sortable format: > stat -f %Sm -t %Y%m%d%H%M%S /tmp/foo 20070427111533 To display the same in UTC: > sh $ TZ= stat -f %Sm -t %Y%m%d%H%M%S /tmp/foo 20070427181533 SEE ALSO file(1), ls(1), lstat(2), readlink(2), stat(2), printf(3), strftime(3) HISTORY The stat utility appeared in NetBSD 1.6 and FreeBSD 4.10. AUTHORS The stat utility was written by Andrew Brown <atatat@NetBSD.org>. This man page was written by Jan Schaumann <jschauma@NetBSD.org>. FreeBSD ports 15.quarterly September 9, 2025 STAT(1)
NAME | SYNOPSIS | DESCRIPTION | EXIT STATUS | EXAMPLES | SEE ALSO | HISTORY | AUTHORS
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