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add usage hint

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anna 2022-10-13 16:18:48 +02:00
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README.md
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@ -4,6 +4,12 @@ This utility is a proxy for `poweroff` to prevent you from accidentally shutting
the wrong system. It does this by printing a warning message and asking for confirmation
followed by a countdown before executing the actual command.
It is most useful when creating an alias for `poweroff` in your shell, like:
```sh
alias poweroff=/usr/local/sbin/poweroff_guard
```
## Important Consideration
If the standard output is not a tty, this behaves exactly like the regular `poweroff`.