Sample per-process CPU usage
Build a paste-ready command, then review its compatibility and effects before running it.
read-onlyno known side effects Compatibility
LinuxVerified for Linux using posix, bash, zsh syntax.
Operational knowledgereview due 2027-01-20
Requirementspidstatpidstat must be installed and available on PATH.
Version supportpidstat Current supported releasesVerified for linux using posix, bash, zsh syntax; consult compatibility notes for platform-specific differences.
Expected signalsUID PID %usr %system %guest %wait %CPU CPU CommandRepresentative successful output; values vary with the selected target and system state.
Known errorspidstat: command not foundpidstat is missing or is not available on PATH.
Verifypidstat -u 1 3The output matches the expected target and exits without an error.Rollback noteNot required: this command is read-only and does not change system state.
Command breakdown
01pidstatCommandRuns the pidstat stage of this one-liner.
02-uOptionConfigures pidstat with the -u option.
031ArgumentPasses 1 to pidstat.
043ArgumentPasses 3 to pidstat.
Example input
pidstat -u 1 3
Example output
UID PID %usr %system %guest %wait %CPU CPU Command
1000 1234 18.0 2.0 0.0 0.1 20.0 3 node
Illustrative output — exact values vary by system and data.
Official sources