We are going to take the commands we repeat frequently and save them in files
so that we can re-run all those operations again later by typing a single command.
For historical reasons,
-a bunch of commands saved in a file is usually called a [shell script](../../gloss.html#shell-script),
+a bunch of commands saved in a file is usually called a [shell script](https://github.com/swcarpentry/bc/blob/master/gloss.md#shell-script),
but make no mistake:
these are actually small programs.
This works,
but it may take the next person who reads `middle.sh` a moment to figure out what it does.
-We can improve our script by adding some [comments](../../gloss.html#comment) at the top:
+We can improve our script by adding some [comments](https://github.com/swcarpentry/bc/blob/master/gloss.md#comment) at the top:
<div class="in" markdown="1">
~~~