tldr/pages/linux/trap.md

# trap

> Execute a command upon an event.
> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-trap>.

- List the available event names (e.g. `SIGWINCH`):

`trap -l`

- List the commands and the names of the expected events:

`trap -p`

- Execute a command when a signal is received:

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

- Remove commands:

`trap - {{SIGHUP}} {{SIGINT}}`