1PIDOF(1) User Commands PIDOF(1)
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6 pidof -- find the process ID of a running program
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9 pidof [-s] [-c] [-q] [-w] [-x] [-o omitpid[,omitpid...]...] [-S sepa‐
10 rator] program [program...]
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13 Pidof finds the process id's (pids) of the named programs. It prints
14 those id's on the standard output.
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17 -s Single shot - this instructs the program to only return one pid.
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19 -c Only return process ids that are running with the same root di‐
20 rectory. This option is ignored for non-root users, as they
21 will be unable to check the current root directory of processes
22 they do not own.
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24 -q Quiet mode, suppress any output and only sets the exit status
25 accordingly.
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27 -w Show also processes that do not have visible command line (e.g.
28 kernel worker threads).
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30 -x Scripts too - this causes the program to also return process
31 id's of shells running the named scripts.
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33 -o omitpid
34 Tells pidof to omit processes with that process id. The special
35 pid %PPID can be used to name the parent process of the pidof
36 program, in other words the calling shell or shell script.
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38 -S separator
39 Use separator as a separator put between pids. Used only when
40 more than one pids are printed for the program. The -d option
41 is an alias for this option for sysvinit pidof compatibility.
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44 0 At least one program was found with the requested name.
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46 1 No program was found with the requested name.
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50 When using the -x option, pidof only has a simple method for detecting
51 scripts and will miss scripts that, for example, use env. This limita‐
52 tion is due to how the scripts look in the proc filesystem.
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56 pgrep(1), pkill(1)
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59 Jaromir Capik <jcapik@redhat.com>
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63 2020-12-22 PIDOF(1)