> For the complete documentation index, see [llms.txt](https://garden.famiclone.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://garden.famiclone.dev/operating-system/unix.md).

# Unix

## Notes

### Find and replace text within a file

```bash
echo "Current shell: <SHELL>" | awk -v VAR=$SHELL '{gsub(/<SHELL>/, VAR)}1'
```

## Links