> For the complete documentation index, see [llms.txt](https://106-sam.gitbook.io/ejptv2-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://106-sam.gitbook.io/ejptv2-notes/upgrading-shells.md).

# Upgrading Shells

```
python -c 'import pty; pty.spawn("/bin/bash")'
```

```
echo $TERM
```

```
stty raw -echo 
```

```
fg
```