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System Administration Guide: Advanced Administration

ProcedureHow to List Processes

  1. Use the ps command to list all the processes on a system. 


    $ ps [-efc]
    ps

    Displays only the processes that are associated with your login session.

    -ef

    Displays full information about all the processes that are being executed on the system.

    -c

    Displays process scheduler information.

Example 12–1 Listing Processes

The following example shows output from the ps command when no options are used. 


$ ps
   PID TTY      TIME COMD
  1664 pts/4    0:06 csh
  2081 pts/4    0:00 ps

The following example shows output from the ps -ef command. This output shows that the first process that is executed when the system boots is sched (the swapper) followed by the init process, pageout, and so on. 


$ ps -ef
     UID   PID  PPID  C    STIME TTY      TIME CMD
    root     0     0  0   Dec 20 ?        0:17 sched
    root     1     0  0   Dec 20 ?        0:00 /etc/init -
    root     2     0  0   Dec 20 ?        0:00 pageout
    root     3     0  0   Dec 20 ?        4:20 fsflush
    root   374   367  0   Dec 20 ?        0:00 /usr/lib/saf/ttymon
    root   367     1  0   Dec 20 ?        0:00 /usr/lib/saf/sac -t 300
    root   126     1  0   Dec 20 ?        0:00 /usr/sbin/rpcbind
    root    54     1  0   Dec 20 ?        0:00 /usr/lib/sysevent/syseventd
    root    59     1  0   Dec 20 ?        0:00 /usr/lib/picl/picld
    root   178     1  0   Dec 20 ?        0:03 /usr/lib/autofs/automountd
    root   129     1  0   Dec 20 ?        0:00 /usr/sbin/keyserv
    root   213     1  0   Dec 20 ?        0:00 /usr/lib/lpsched
    root   154     1  0   Dec 20 ?        0:00 /usr/sbin/inetd -s
    root   139     1  0   Dec 20 ?        0:00 /usr/lib/netsvc/yp/ypbind ...
    root   191     1  0   Dec 20 ?        0:00 /usr/sbin/syslogd
    root   208     1  0   Dec 20 ?        0:02 /usr/sbin/nscd
    root   193     1  0   Dec 20 ?        0:00 /usr/sbin/cron
    root   174     1  0   Dec 20 ?        0:00 /usr/lib/nfs/lockd
  daemon   175     1  0   Dec 20 ?        0:00 /usr/lib/nfs/statd
    root   376     1  0   Dec 20 ?        0:00 /usr/lib/ssh/sshd
    root   226     1  0   Dec 20 ?        0:00 /usr/lib/power/powerd
    root   315     1  0   Dec 20 ?        0:00 /usr/lib/nfs/mountd
    root   237     1  0   Dec 20 ?        0:00 /usr/lib/utmpd
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