# chgrp
# Change group ownership of files and directories.
# More information: <https://www.gnu.org/software/coreutils/chgrp>.
# Change the owner group of a file/directory:
chgrp group path/to/file_or_directory
# Recursively change the owner group of a directory and its contents:
chgrp -R group path/to/directory
# Change the owner group of a symbolic link:
chgrp -h group path/to/symlink
# Change the owner group of a file/directory to match a reference file:
chgrp --reference=path/to/reference_file path/to/file_or_directory
$
cheat.sh
tldr