simple problem for a newbie

I am trying to find a way to display just sudoers, passwd and shadow files without the extensions..

Thank you for any suggestions

 ls -lrt /etc | egrep 'sudoers|passwd|group|shadow'
-r--------    1 root     root         1338 Oct 31  2006 shadow.sav
-r--------    1 root     root         5191 Nov  1  2006 shadow.sav.061101
-r--------    1 root     root         1144 Nov  1  2006 shadow.gerry
-r--------    1 root     root        11099 Dec 11  2008 shadow.20081216
-r--------    1 root     root        11035 Dec 16  2008 shadow.20081217
-rw-r--r--    1 root     root         3282 Dec 22  2008 group.20081222
-r--r-----    1 root     root        12534 Feb 26  2010 sudoers.20100516
-rw-r--r--    1 root     root        15475 Mar 27  2010 passwd.20100516
-rw-r--r--    1 root     root         3792 Mar 27  2010 group.20100516
-r--------    1 root     root        12097 Apr 26  2010 shadow.20100516
-rw-------    1 root     root        11973 Nov 24  2010 shadow-
-rw-------    1 root     root        15325 Nov 24  2010 passwd-
-rw-------    1 root     root         3080 Nov 24  2010 gshadow-
-rw-------    1 root     root         3786 Nov 24  2010 group-
-r--r-----    1 root     root        12476 Nov 24  2010 sudoers.20110628
-rw-r--r--    1 root     root        15396 Nov 24  2010 passwd.20110628
-r--------    1 root     root         3091 Nov 24  2010 gshadow
-rw-r--r--    1 root     root         3808 Jan 13  2011 group.20110628
-r--------    1 root     root        12034 Jun 17 17:42 shadow.20110628
-rw-r--r--    1 root     root        15301 Jun 28 20:53 passwd
-rw-r--r--    1 root     root         3788 Jun 28 20:55 group
-r--r-----    1 root     root        12402 Jun 28 20:58 sudoers
-r--------    1 root     root        11967 Jul 22 16:59 shadow

have your tried this?

ls -lrt /etc | egrep 'sudoers$|passwd$|group$|shadow$'

Add $ to the end of file name and try..

ls -lrt /etc | egrep 'sudoers$|passwd$|group$|shadow$'

Post deleted.

Thank you ..

that did the trick !!