Update cheatsheets

linux/trap

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# 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}}`