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24 lines
454 B
Markdown
24 lines
454 B
Markdown
# trap
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> Execute a command upon an event.
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> More information: <https://www.gnu.org/software/bash/manual/bash.html#index-trap>.
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- List the available event names (e.g. `SIGWINCH`):
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`trap -l`
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- List the commands and the names of the expected events:
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`trap`
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- Execute a command when a signal is received:
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`trap 'echo "Caught signal {{SIGHUP}}"' {{SIGHUP}}`
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- Remove commands:
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`trap - {{SIGHUP}} {{SIGINT}}`
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- Ignore a signal:
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`trap '' {{SIGINT}}`
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