韓家標 Bill Hacker wrote: > Artem Kuchin wrote: >>> Ah, mc. >>> Ok, it is reproducable in the following way: >>> pooma% sh >>> +m ~ $ ~/work/scratch/su.pl >>> Password: >>> heck >>> done! >>> $ [1] + 1725 suspended (tty input) sh +m >>> pooma% >>> >>> Note the +m, that turns off the job control. >> >> I switched from csh (which is tcsh) > > Mmy PowerBook and my Beastie boxen don't *quite* agree on that point, > but 'close enough' ordinarily... > > to sh and run >> the script from midnight commander. >> I got: >> >> heck >> done! >> Press any key to continue...[1] + Stopped (tty output) mc >> >> So, script finished and midnight commander get suspended now. >> > > Not exactly what I *suspected* would be found when I asked if we were > chasing the right animal --- but not an su or tsch issue, either. > > What happens if you play with '&' '&&' 'exit' or even just a > <newline> in the script at the right places? still using /bin/sh as shell script is called a.pl 1) exit at the end of the script does not change anything 2) ./a.pl && does not change anything 3) ./a.pl & alsmost the same except thart order changes a bit # ./a.pl & Press any key to continue...heck done! 'Press any key to continues' comes from mc 4) if i chane the script $com="/usr/bin/su root -c 'echo heck' &"; (note & is related to shell in su, not to echo) # ./a.pl done! Press any key to continue...heck [1] + Stopped (tty input) mc # After heck it wait or ENTER to be pressed. This is interesting, because it means control is returned to mc and it wait for the key, but after i press ENTER i get stopped. 5) $com="/usr/bin/su root -c 'echo heck' &&"; does not change anything 6) & and && in echo like 'echo heck &' do no change anything -- ArtemReceived on Thu Oct 18 2007 - 05:04:15 UTC
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