[Semibug] determining exit status
Dr. Robert Meier
list1c30fe42 at bellsouth.net
Tue May 23 21:46:03 EDT 2017
I have found the following snigglet useful for
catching process state changes to debug
watch 'ps -eH -o pid,ppid,stat,command | grep dbus'
watch - repeat a command every 2 seconds
ps - process states
-eH - for every user, order as spawn tree
-o ... - report process id, parent, state, and command
grep ... select output
ps(1) -o option is very flexible, and so if I can often
construct a suitable format and search string based on
whatever clues/symptoms I know or suspect.
Some situations lend themselves to using
watch(1) -e option to freeze the display on command error.
More information about the Semibug