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521 B
521 B
trap
Automatically execute commands after receiving signals by processes or the operating system. Can be used to perform cleanups for interruptions by the user or other actions. More information: https://pubs.opengroup.org/onlinepubs/9699919799/utilities/V3_chap02.html#trap.
- List active traps for the current shell:
trap
- Set a trap to execute commands when one or more signals are detected:
trap 'echo "Caught signal {{SIGHUP}}"' {{SIGHUP}}
- Remove active traps:
trap - {{SIGHUP}} {{SIGINT}}