echo -n 'my new command line' >/proc/$$/commRunning
$ psOutputs:
PID TTY TIME CMD 2482391 pts/0 00:00:16 my new command 2617215 pts/0 00:00:00 ps
echo -n 'my new command line' >/proc/$$/commRunning
$ psOutputs:
PID TTY TIME CMD 2482391 pts/0 00:00:16 my new command 2617215 pts/0 00:00:00 ps