Update cheatsheets

timeout

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+---
+syntax: markdown
+tags: [tldr, common]
+source: https://github.com/tldr-pages/tldr.git
+---
+# timeout
+
+> Run a command with a time limit.
+> More information: <https://www.gnu.org/software/coreutils/timeout>.
+
+- Run `sleep 10` and terminate it after 3 seconds:
+
+`timeout 3s sleep 10`
+
+- Send a signal to the command after the time limit expires (SIGTERM by default):
+
+`timeout --signal {{INT}} {{5s}} {{sleep 10}}`