lady:~# ps auxn | sed 's/bb/gr/g'
    USER   PID %CPU %MEM   VSZ  RSS TTY      STAT START   TIME COMMAND
       0     1  0.0  0.0  1504  512 ?        Ss   15:00   0:00 ini
       0 25839  0.0  0.0  1560  592 ?        Ss   15:00   0:00 /sbin/syslogd
       0 25850  0.0  0.0  3468 1520 ?        Ss   15:00   0:00 /usr/sbin/sshd
       1 25853  0.0  0.0  1684  628 ?        Ss   15:00   0:00 /usr/sbin/atd
       0 25856  0.0  0.0  1764  816 ?        Ss   15:00   0:00 /usr/sbin/cron
       0 21915  0.0  0.0  6224 1984 ?        Ss   15:02   0:00 sshd: gr [priv]
    1000 28438  0.0  0.0  6232 2040 ?        S    15:02   0:00 sshd: gr@pts/0
    1000 28529  0.0  0.0  2584 1456 pts/0    Ss   15:02   0:00 -bash
    1000 16344  0.0  0.0  2672 1432 ?        Ss   19:26   0:00 SCREEN -e^]^]
    1000 16345  0.0  0.0  2616 1480 pts/1    Ss   19:26   0:00 /bin/bash
    1000 17571  0.0  0.0  7144 3660 pts/1    S+   19:27   0:00 irssi -n grummund
    1000 19573  0.0  0.0  2536  912 pts/0    S+   20:21   0:00 screen -rd
       0 25905  0.0  0.0  6224 1984 ?        Ss   20:23   0:00 sshd: gr [priv]
    1000 25920  0.0  0.0  6232 2040 ?        S    20:23   0:00 sshd: gr@pts/2
    1000 25933  0.0  0.0  2584 1448 pts/2    Ss   20:23   0:00 -bash
       0 25954  0.0  0.0  2568 1416 pts/2    R    20:23   0:00 -su
       0 26328  0.0  0.0  2496  848 pts/2    R+   20:25   0:00 ps auxn