User groups Chgrp and file owners who modified files under Linux Chown

1. Modify the file user group under Linux
Chgrp:change Group, modify the user group to which the file belongs.

CHGRP Users Test.log

View Ls-l after modification

-RWXRWX---  1 work users 0 June  8 15:46 Test.log

If you want to modify all files and directories under this directory, use the-r parameter.

Chgrp-r Users Test

The group name to be changed must be in the/etc/group file. The/etc/group file records all the group names in the system.
2. Modify the file owner under Linux
Chown:change owner's shorthand, modify the file owners.

Chown [-r] Account name  file or directory

-R recursion, modify all the files in the sub-directory.
Modify the file owner Bin

Chown bin Test.log

The modified user must log the user information/etc/passwd in the/etc/passwd file.
Chown can also repair the group name

Chown Root:root Test.log

Change both the owner and group name to root.
Address: http://blog.csdn.net/yonggang7/article/details/29369587