Combine: Advanced Bash-Scripting Guide

[Mirzhan]

There are 4 versions of the same book that should be combined under the same heading (but as different editions).

https://www.goodreads.com/search?q=ad...

The source of the book: https://www.tldp.org/guides.html#abs

[Arenda]

At least two of them should not be combined, as they are volume 1 and volume 2. Parts of a book should not be combined with the complete book.

As for the other two books ("in Linux" and "5.0") I can't tell if they have the same content, and one is just an updated edition of the other. It that is the case, these two should be combined.

Both still have a page on Lulu: http://www.lulu.com/shop/mendel-mende... and http://www.lulu.com/shop/mendel-coope...
If one is an updated edition of the other, I would assume the older edition is no longer avaible.