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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}}