Improve notice of running commands as single expression in last post
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@ -152,10 +152,11 @@ commands after all.
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Bash also has `[[`, which is
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Bash also has `[[`, which is
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[different](https://stackoverflow.com/q/13542832/1000145) from `[`.
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[different](https://stackoverflow.com/q/13542832/1000145) from `[`.
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You can execute blocks of commands by wrapping it with `{ expr }`. For example:
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You can wrap multiple commands with `{ expr }` to run it as single expression in
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your command chain. For example:
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```bash
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```bash
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[ $EUID -ne 0 ] && { echo You must be root; exit 1 }
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[ $EUID -ne 0 ] && { echo You must be root; exit 1 }
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```
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```
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The `true` and `false` commands do nothing more than returning `0` or `1`.
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The `true` and `false` commands do nothing more than returning `0` or `1`.
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