pidof man page on ElementaryOS

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PIDOF(8)	      Linux System Administrator's Manual	      PIDOF(8)

NAME
       pidof -- find the process ID of a running program.

SYNOPSIS
       pidof  [-s] [-c] [-n] [-x] [-o omitpid[,omitpid..]]  [-o omitpid[,omit‐
       pid..]..]  program [program..]

DESCRIPTION
       Pidof finds the process id's (pids) of the named	 programs.  It	prints
       those id's on the standard output. This program is on some systems used
       in run-level change scripts, especially when the system has a  System-V
       like   rc  structure.  In  that	case  these  scripts  are  located  in
       /etc/rc?.d, where ? is the runlevel. If the system  has	a  start-stop-
       daemon (8) program that should be used instead.

OPTIONS
       -s     Single shot - this instructs the program to only return one pid.

       -c     Only  return  process  ids  that	are running with the same root
	      directory.  This option is ignored for non-root users,  as  they
	      will  be unable to check the current root directory of processes
	      they do not own.

       -n     Avoid stat(2) system function call on  all  binaries  which  are
	      located  on  network  based  file	 systems like NFS.  Instead of
	      using this option the the variable PIDOF_NETFS may  be  set  and
	      exported.

       -x     Scripts  too  -  this  causes the program to also return process
	      id's of shells running the named scripts.

       -o omitpid
	      Tells pidof to omit processes with that process id. The  special
	      pid  %PPID  can  be used to name the parent process of the pidof
	      program, in other words the calling shell or shell script.

EXIT STATUS
       0      At least one program was found with the requested name.

       1      No program was found with the requested name.

NOTES
       pidof is actually the same program as  killall5;	 the  program  behaves
       according to the name under which it is called.

       When  pidof  is	invoked	 with a full pathname to the program it should
       find the pid of, it is reasonably safe. Otherwise it is	possible  that
       it  returns  pids of running programs that happen to have the same name
       as the program you're after but are actually other programs. Note  that
       that  the executable name of running processes is calculated with read‐
       link(2), so symbolic links to executables will also match.

SEE ALSO
       shutdown(8), init(8), halt(8), reboot(8), killall5(8)

AUTHOR
       Miquel van Smoorenburg, miquels@cistron.nl

				  01 Sep 1998			      PIDOF(8)
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