1. Signal processing Linux has signals that can be used on more than 30 systems. Among them, common signals are described in the table below. Basically, the bash shell ignores sigquit(3) and sigterm(15) and processes SIGHUP(1) and sigint(2). When the bash shell receives a SIGHUP, it delivers the SIGHUP signal and SIGINT to all processes running in the shell. And the Linux kernel suspends the shell on the CPU at shell processing time and sends a sign signal to notify all processes started by this...
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원문링크 : Chapter 11 Script Control
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