Phillip Susi wrote: >> trap "" 1 15 >> if test -t 2>&1 ; then >> echo "Sending output to 'nohup.out'" >> exec nice -5 $* >>nohup.out 2>&1 >> else >> exec nice -5 $* 2>&1 >> fi >> >> All that nohup does is to ignore SIGHUP and SIGTERM and redirect the >> output if it is not already redirected. Before job control this was >> all that was needed to avoid a controlling terminal disconnection from >> killing the process. Unfortunately with job control a little more is >> needed. > > Trapping the signals in the shell does not trap them in the exec'd child > program, so I don't see how this would work.
Untrue, actually: _handling_ the signals would not handle them in the exec'd child (for obvious reasons), but POSIX requires blocked signals to remain blocked after an exec. Try the following: ---- #!/bin/sh trap "" TSTP exec yes > /dev/null ---- and then try suspending the program with ^Z, with and without the "trap" line commented out. :) -- Micah J. Cowan Programmer, musician, typesetting enthusiast, gamer... http://micah.cowan.name/ _______________________________________________ Bug-coreutils mailing list Bug-coreutils@gnu.org http://lists.gnu.org/mailman/listinfo/bug-coreutils
