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test if the current user is sudo-su'd into this session

- signed-off-by: lbonanomi <lbonanomi@gmail.com>
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@@ -1227,6 +1227,12 @@ ___
who -b
```

###### Detect a user sudo-su'd into the current shell

```
[[ $(who -m | awk '{ print $1 }') == $(whoami) ]] || echo "You are su-ed to $(whoami)"
```

___

##### Tool: [screen](https://en.wikipedia.org/wiki/GNU_Screen)


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