pgrep - look up processes based on name
$ pgrep [--count] [-d delimiter] [--ignore-case] [--list-name] [--uid uid-list] [--invert-match] [--exact] <process-name>-c, --count: Suppress normal output and print the number of matching processes-d, --delimiter: Set the string used to delimit multiple pids-i, --ignore-case: Make matches case-insensitive-l, --list-name: List the process name in addition to its pid-U uid-list, --uid uid-list: Select only processes whose UID is in the given comma-separated list. Login name or numerical user ID may be used-x, --exact: Select only processes whose names match the given pattern exactly-v, --invert-match: Select non-matching linesprocess-name: Process name to search for