PIDOF(1) User Commands PIDOF(1)
pidof -- find the process ID of a running program
pidof [-s] [-c] [-q] [-w] [-x] [-o omitpid[,omitpid...]...] [-S separator] program [program...]
Pidof finds the process id's (pids) of the named programs. It prints those id's on the standard output.
-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. -q Quiet mode, suppress any output and only sets the exit status accordingly. -w Show also processes that do not have visible command line (e.g. kernel worker threads). -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. -S separator Use separator as a separator put between pids. Used only when more than one pids are printed for the program. The -d option is an alias for this option for sysvinit pidof compatibility.
0 At least one program was found with the requested name. 1 No program was found with the requested name.
When using the -x option, pidof only has a simple method for detecting scripts and will miss scripts that, for example, use env. This limitation is due to how the scripts look in the proc filesystem.
Jaromir Capik <email@example.com>
This page is part of the procps-ng (/proc filesystem utilities) project. Information about the project can be found at ⟨https://gitlab.com/procps-ng/procps⟩. If you have a bug report for this manual page, see ⟨https://gitlab.com/procps-ng/procps/blob/master/Documentation/bugs.md⟩. This page was obtained from the project's upstream Git repository ⟨https://gitlab.com/procps-ng/procps.git⟩ on 2021-04-01. (At that time, the date of the most recent commit that was found in the repository was 2021-03-18.) If you discover any rendering problems in this HTML version of the page, or you believe there is a better or more up-to-date source for the page, or you have corrections or improvements to the information in this COLOPHON (which is not part of the original manual page), send a mail to firstname.lastname@example.org 2020-12-22 PIDOF(1)
Pages that refer to this page: killall(1)