Update cheatsheets

linux/faketime

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+---
+syntax: markdown
+tags: [tldr, linux]
+source: https://github.com/tldr-pages/tldr.git
+---
+# faketime
+
+> Fake the system time for a command.
+> More information: <https://manned.org/faketime>.
+
+- Fake the time to this evening, before printing the result of `date`:
+
+`faketime '{{today 23:30}}' {{date}}`
+
+- Open a new `bash` shell, which uses yesterday as the current date:
+
+`faketime '{{yesterday}}' {{bash}}`
+
+- Simulate how a program would act next Friday night:
+
+`faketime '{{next Friday 1 am}}' {{path/to/program}}`