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- if egrep -q "SigIgn:\s.{15}[13579bdf]" /proc/$$/status ; then echo "Ignores SIGHUP (runing via nohup... e print err_msg and abort the script with an exit status of 1. Both forms nearly equivalent. The : makes a... signal 2, (130 = 128 + 2, see above)| |255* |Exit status out of range |exit -1 |exit takes only integer ar