snippetbashTip

trap — Execute a command upon an event. More information: <https://manned.org/trap.1posix>.

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the trap command: Execute a command upon an event. More information: <https://manned.org/trap.1posix>.

Solution

trap — Execute a command upon an event. More information: <https://manned.org/trap.1posix>.

List the commands and the names of the expected events:

trap

Execute a command when a signal is received:

trap 'echo "Caught signal {{SIGHUP}}"' {{HUP}}

Remove commands:

trap - {{HUP}} {{INT}}

Code Snippets

List the commands and the names of the expected events

trap

Execute a command when a signal is received

trap 'echo "Caught signal {{SIGHUP}}"' {{HUP}}

Remove commands

trap - {{HUP}} {{INT}}

Context

tldr-pages: common/trap

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