Stuart Murray-Smith wrote:
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 :-)
that sounds a lot like echo $?...as in
# pidof mysqld;echo $?
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