Linux and Unix stat command

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About stat
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About stat

Displays the detailed status of a particular file or a file system.


stat [OPTION]... FILE...


-f, --filesystem display filesystem status instead of file status
-c, --format=FORMAT use the specified FORMAT instead of the default
-L, --dereference follow links
-Z, --context print the SELinux security context
-t, --terse print the information in terse form
--help display this help and exit
--version output version information and exit

The valid format sequences for files (without --filesystem):

%A Access rights in human readable form
%a Access rights in octal
%B The size in bytes of each block reported by '%b'
%b Number of blocks allocated (see %B)
%C SELinux security context string
%D Device number in hex
%d Device number in decimal
%F File type
%f Raw mode in hex
%G Group name of owner
%g Group ID of owner
%h Number of hard links
%i Inode number
%N Quoted File name with dereference if symbolic link
%n File name
%o IO block size
%s Total size, in bytes
%T Minor device type in hex
%t Major device type in hex
%U User name of owner
%u User ID of owner
%X Time of last access as seconds since Epoch
%x Time of last access
%Y Time of last modification as seconds since Epoch
%y Time of last modification
%Z Time of last change as seconds since Epoch
%z Time of last change

Valid format sequences for file systems:

%a Free blocks available to non-superuser
%b Total data blocks in file system
%c Total file nodes in file system
%C SELinux security context string
%d Free file nodes in file system
%f Free blocks in file system
%i File System id in hex
%l Maximum length of filenames
%n File name
%s Optimal transfer block size
%T Type in human readable form
%t Type in hex


stat index.htm

Reports the status of file index.htm, displaying results similar to the following output:

File: `index.htm'
Size: 17137 Blocks: 40 IO Block: 8192 regular file
Device: 8h/8d Inode: 23161443 Links: 1
Access: (0644/-rw-r--r--) 
Uid: (17433/comphope) Gid: ( 32/ www)
Access: 2007-04-03 09:20:18.000000000 -0600
Modify: 2007-04-01 23:13:05.000000000 -0600
Change: 2007-04-02 
16:36:21.000000000 -0600
stat -f /dev/sda

With the -f option, stat can return the status of an entire file system. Here, it returns the status of the first hard disk. Output will resemble the following:

  File: "/dev/sda"
    ID: 0        Namelen: 255     Type: tmpfs
Block size: 4096       Fundamental block size: 4096
Blocks: Total: 2560       Free: 2560       Available: 2560
Inodes: Total: 126428     Free: 125966
stat --format "%A" /var/log/syslog

Display only the access restrictions, in human-readable form, of the system log /var/log/syslog. Output will resemble the following:


...which indicates that the file is readable and writable by root, readable by the owning group (in this case the admin group), and not accessible at all by others.

Related commands

ls — List the contents of a directory or directories.