ls ( -g option )

UNIX Command

$ls -g
total 4
-rw-r--r-- 1 jeffrin 0 Feb 19 22:30 a1.txt
-rw-r--r-- 1 jeffrin 2 Feb 19 22:31 a2.txt
$

UNIX Explanation

 -g     like -l, but do not list owner

computer science related Theory Drop

Every  file  or   folder  in  UNIX  has  access
permissions.   There   are   three   types   of
permissions (what allowed to do with a file):

read access
write access
execute access
Permissions are defined for three types of users:

the owner of the file
the group that the owner belongs to
other users


source : http://www.zzee.com/solutions/unix-permissions.shtml