---
tags:
  - bash
---
The environment variable `RANDOM` contains an int between 0-32768.

```
min=10
max=20 
echo $(($RANDOM%($max-$min+1)+$min))
20
echo $(($RANDOM%($max-$min+1)+$min))
14
```

Using parameter [[Expansion]] we can just grab the first number:
```
${RANDOM:0}
```