Linux Basic Command-CHGRP/CHOWN/CHOMD

CHGRP changing the owning user group

The group name to be changed must exist within the/etc/group file;

CHGRP [-R] Dirname/filename

-r: Continuous changes to the recursive, with all files and directories under the subdirectory updated to the new user group

Chown Changing the file owner

If you want all subdirectories or files under the directory to change the file owner at the same time, add the-r parameter directly

Chown [-r] Account name file or directory

Chown [-r] Account name : Group name file or directory

Chown [-r] Account name . Group name file or directory

chmod changing permissions

Number Types Change file permissions

[email protected] tmp]# lltotal4drwxr-xr-x.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmod  thefoo/[email protected] tmp]#lsFoo[[email protected] tmp]# lltotal4D---------. 2Root root4096The A  .: OneFoo[[email protected] tmp]#chmod 777foo/[email protected] tmp]# lltotal4drwxrwxrwx.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmod 641foo/[email protected] tmp]#lsFoo[[email protected] tmp]# lltotal4DRW-R----X.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmod 755foo/[email protected] tmp]# lltotal4drwxr-xr-x.2Root root4096The A  .: OneFoo[[email protected] tmp]#

Symbol Type Change file permissions

[Email protected] tmp]#chmodu=rwx,g=rw,o=rw/tmp/foo/[email protected] tmp]# lltotal4DRWXRW-rw-.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmodu=rx,g+x,o-rw/tmp/foo/[email protected] tmp]# lltotal4Dr-XRWX---.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmodugo=rw/tmp/foo/[email protected] tmp]# L-bash:l: Command not found[[email protected] tmp]# lltotal4DRW-rw-rw-.2Root root4096The A  .: OneFoo[[email protected] tmp]#chmodug=rw,o-rw/tmp/foo/[email protected] tmp]# lltotal4DRW-RW----.2Root root4096The A  .: OneFoo[[email protected] tmp]#

Linux Basic Command-CHGRP/CHOWN/CHOMD