root@pnume:~ # ls -lsa /bin/*sh* ;cat /etc/shells; cat /etc/passwd|grep pnume; ls -lsa /home|grep pnume
637 -rwxr-xr-x  1 root root 650796 2005-10-05 14:16 /bin/bash
 84 -rwxr-xr-x  1 root root  85628 2005-05-12 11:26 /bin/dash
  0 lrwxrwxrwx  1 root root      4 2005-10-16 03:50 /bin/rbash -> bash
  0 lrwxrwxrwx  1 root root      4 2005-10-16 03:50 /bin/sh -> bash
# /etc/shells: valid login shells
/bin/ash
/bin/csh
/bin/sh
/usr/bin/es
/usr/bin/ksh
/bin/ksh
/usr/bin/rc
/usr/bin/tcsh
/bin/tcsh
/usr/bin/zsh
/bin/sash
/bin/zsh
/usr/bin/esh
/bin/dash
/usr/bin/screen
/bin/bash
/bin/rbash
pnume:x:1000:1000:pnume,,,:/home/pnume:/bin/bash
8 drwxr-xr-x  134 pnume      pnume      8272 2006-01-26 00:59 pnume
root@pnume:~ #