<p>Say I have a file with any number of lines, say, 125. I want to get all the lines except the first n, say, 20. So, I want lines 21–125.</p>

<p>Is there a way to do this with with <code>tail</code>/<code>head</code>, or some other tool?</p>

Try
```
```
tail -n +21 myfile.txt
```
```