$ pwd
/village
$ ps ax | grep find &
[1] 12890
$  3122 ?        R      0:00 /usr/bin/find . -name information
 
$ ls -l /proc/3122
ls: /proc/3122: Permission denied
$ 35868 ?        S      0:00 /usr/bin/find . -name information
38892 ?        S      0:00 /usr/bin/find . -name information
39562 ?        S      0:00 /usr/bin/find . -name information
 
[1]+  Done                    ps ax | grep find
$ rm */information
rm: cannot remove `hook/information': I/O error
rm: cannot remove `crook/information': I/O error
$ ps axu | grep 3122
number2   3122  0.0  0.1  17796  8800 ?        S    Apr26   0:00 /usr/bin/find
$ grep 1: /etc/passwd
number6:x:2671:2671::/village:/bin/sh
$ su `cut -f1 -d: /etc/passwd | grep -v number | head -1` -c 'man free'