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LPI101 - table 5-5

Interactive signals

QuestionAnswer
What is HUP? *1* Hang up. This signal is sent automatically when you log out or disconnect a modem. It is also used by many daemons to cause the configuration file to be reread.
What is INT? *2* Interrupt; stop running. This signal is sent when you type Ctrl-C.
What is KILL? *9* Kill; stop unconditionally and immediately. Sending this signal is a drastic measure, as it cannot be ignored by the process. This is the "emergency kill" signal.
What is TERM? *15* Terminate, nicely if possible. This signal is used to ask a process to exit gracefully.
What is TSTP? *20* Stop executing, ready to continue. This signal is sent when you type Ctrl-Z. (See the later section "Shell Job Control" for more information.)
What is CONT? *18* Continue execution. This signal is sent to start a process stopped by SIGTSTP or SIGSTOP. (The shell sends this signal when you use the fg or bg commands after stopping a process with Ctrl-Z.)
Created by: jtuyen
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