bizdelnick, 1 year ago (edited 1 year ago)

It is a great book, although a bit outdated. In particular, nowadays egrep is not recommended to use. grep -E is a more portable synonim.

Some notes on you script:

1. You don’t need to escape slashes in grep regex. In the sed s/// command better use another character like s### so you also can leave slashes unescaped.
2. You usually don’t need to pipe grep and sed, sed -n with regex address and explicit printing command gives the same result as grep.
3. You could omit leading slash in your egrep regex, so you won’t need to remove it later.

So I would do the same with

<span style="color:#323232;">tar -tzvf file.tar.gz | sed -En '/.(mp4|mkv)$/{s#^.*/##; s#.[.*##; s#[^a-zA-Z0-9()&-]# #g; s/ +/ /g; p}'
</span>