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PGREP(1)			       Linux User's Manual				 PGREP(1)

       pgrep, pkill - look up or signal processes based on name and other attributes

       pgrep [-flnvx] [-d delimiter] [-P ppid,...] [-g pgrp,...]
	    [-s sid,...] [-u euid,...] [-U uid,...] [-G gid,...]
	    [-t term,...] [pattern]

       pkill [-signal] [-fnvx] [-P ppid,...] [-g pgrp,...]
	    [-s sid,...] [-u euid,...] [-U uid,...] [-G gid,...]
	    [-t term,...] [pattern]

       pgrep  looks  through  the  currently  running  processes  and lists the process IDs which
       matches the selection criteria to stdout.  All the criteria have to match.  For example,

       pgrep -u root sshd

       will only list the processes called sshd AND owned by root.  On the other hand,

       pgrep -u root,daemon

       will list the processes owned by root OR daemon.

       pkill will send the specified signal (by default SIGTERM) to each process instead of list-
       ing them on stdout.

       -d delimiter
	      Sets  the  string  used to delimit each process ID in the output (by default a new-
	      line).  (pgrep only.)

       -f     The pattern is normally only matched against the process name.  When -f is set, the
	      full command line is used.

       -g pgrp,...
	      Only  match  processes  in the process group IDs listed.	Process group 0 is trans-
	      lated into pgrep's or pkill's own process group.

       -G gid,...
	      Only match processes whose real group ID is listed.  Either the numerical  or  sym-
	      bolical value may be used.

       -l     List the process name as well as the process ID. (pgrep only.)

       -n     Select only the newest (most recently started) of the matching processes.

       -P ppid,...
	      Only match processes whose parent process ID is listed.

       -s sid,...
	      Only  match  processes  whose process session ID is listed.  Session ID 0 is trans-
	      lated into pgrep's or pkill's own session ID.

       -t term,...
	      Only match processes whose controlling  terminal	is  listed.   The  terminal  name
	      should be specified without the "/dev/" prefix.

       -u euid,...
	      Only  match  processes  whose effective user ID is listed.  Either the numerical or
	      symbolical value may be used.

       -U uid,...
	      Only match processes whose real user ID is listed.  Either the numerical or symbol-
	      ical value may be used.

       -v     Negates the matching.

       -x     Only  match processes whose name (or command line if -f is specified) exactly match
	      the pattern.

	      Defines the signal to send to each matched process.  Either the numeric or the sym-
	      bolic signal name can be used.  (pkill only.)

	      Specifies  an Extended Regular Expression for matching against the process names or
	      command lines.

       Example 1: Find the process ID of the named daemon:

       unix$ pgrep -u root named

       Example 2: Make syslog reread its configuration file:

       unix$ pkill -HUP syslogd

       Example 3: Give detailed information on all xterm processes:

       unix$ ps -fp $(pgrep -d, -x xterm)

       Example 4: Make all netscape processes run nicer:

       unix$ renice +4 `pgrep netscape`

       0      One or more processes matched the criteria.

       1      No processes matched.

       2      Syntax error in the command line.

       3      Fatal error: out of memory etc.

       The process name used for matching is limited to the 15 characters present in  the  output
       of  /proc/pid/stat.   Use  the  -f  option  to  match  against  the complete command line,

       The running pgrep or pkill process will never report itself as a match.

       The options -n and -v can not be combined.  Let me know if you need to do this.

       Defunct processes are reported.

       ps(1) proc(5) regex(5)

       pkill and pgrep were introduced in Sun's Solaris 7.  This implementation is fully compati-

       Kjetil Torgrim Homme <kjetilho@ifi.uio.no>

       Michael K. Johnson <johnsonm@redhat.com> is the current maintainer of the procps package.

       Please send bug reports to <procps-list@redhat.com>

Linux					  June 25, 2000 				 PGREP(1)
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