Hello purple52,

I've tested the extra backslash in the sed-command in Ubuntu 12.04.2 LTS, and got the following output:
```bash
$ sed -e'/comment/s/#\\+//' 'test'
no comment
#uncomment this
```

This is not the correct output.

The command works without the extra backslash you've added:
```bash
$ sed -e'/comment/s/#\+//' 'test'
no comment
uncomment this
```