> > It's not in the script itself, but a keystroke sequence that one does > > at the command prompt... same as Ctrl-R gets one a rolling history > > stack :-) > > > > so here you are assuming that the shell keeps a history of exit status? Not necessarily, the rolling history stack and exit status was an example :-) If I had to enter: # pidof mysqld say, and this cli returned null, there is something that I can do to pipe the actual return to stdout, even if it's default is to return null to monitor (stdout). HTH with the description :-)
