[SOLVED] pgrep 3.2.8 number of running processes

Issue

Using pgrep 3.3.10, if I want to know the number of processing running with commands which match the string pippo I can do watch -n 1 'pgrep -c pippo'. With pgrep 3.2.8 it doesn't work, it gives me:

pgrep: invalid option -- 'c' Usage: pgrep [-flvx] [-d DELIM] [-n|-o] [-P PPIDLIST] [-g PGRPLIST] [-s SIDLIST] [-u EUIDLIST] [-U UIDLIST] [-G GIDLIST] [-t TERMLIST] [PATTERN]

Is there an equivalent way of giving me a continuously updating number of commands matching a string in pgrep 3.2.8?

Solution

Pipe it to wc -l:

watch -n 1 'pgrep pippo | wc -l'

Answered By - Thor

Answer Checked By - Katrina (WPSolving Volunteer)