pgrep — Find processes by name.
# source: tldr · verified

Examples:
  # Return PIDs of any running processes with a matching command string [GNU]
    $ pgrep process_name
  # Also display the full command [GNU]
    $ pgrep [-a|--list-full] process_name
  # Search for processes including their command-line options [GNU]
    $ pgrep [-f|--full] "process_name parameter"

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