chgrp
change file group ownership
TLDR
Change the group of a file
$ chgrp [group] [path/to/file]
Change the group of a directory recursively$ chgrp -R [group] [path/to/directory]
Change group using a reference file$ chgrp --reference=[path/to/reference_file] [path/to/file]
Change group of a symbolic link itself$ chgrp -h [group] [path/to/symlink]
Change group verbosely showing each file processed$ chgrp -v [group] [path/to/file]
Change group showing only when changes are made$ chgrp -c [group] [path/to/file]
SYNOPSIS
chgrp [OPTION...] GROUP FILE...chgrp [OPTION...] --reference=RFILE FILE...
DESCRIPTION
chgrp changes the group ownership of each specified file to the given group. The group can be specified by name or numeric GID.All files in Linux belong to both an owner and a group. While chown changes user ownership, chgrp specifically handles group ownership changes.
PARAMETERS
-c, --changes
Report only when a change is made (like verbose but quieter)-f, --silent, --quiet
Suppress most error messages-v, --verbose
Output a diagnostic for every file processed-h, --no-dereference
Affect symbolic links instead of referenced files-R, --recursive
Operate on files and directories recursively--reference=RFILE
Use RFILE's group instead of specifying a GROUPRecursive traversal options (with -R):-H - Traverse symbolic link on command line-L - Traverse all symbolic links to directories-P - Do not traverse symbolic links (default)
INSTALL
sudo apt install coreutils
sudo dnf install coreutils
sudo pacman -S coreutils
sudo apk add coreutils
sudo zypper install coreutils
brew install coreutils
nix profile install nixpkgs#coreutils
CAVEATS
Only root or the file owner can change group ownership. Regular users can only change to groups they belong to. Use ls -l to view current group ownership.
HISTORY
chgrp is a standard Unix command dating back to early Unix systems. The GNU coreutils version was written by David MacKenzie and is the implementation found on most Linux distributions.