How to cat multiple files from a list of files in Bash?

Question

I have a text file that holds a list of files. I want to cat their contents together. What is the best way to do this? I was doing something like this but it

Answer 1

I ended up with this:

sed '/^$/d;/^#/d;s/^/cat "/;s/$/";/' files | sh > output

Steps:

1. sed removes blank lines & commented out lines from files.

2. sed then wraps each line in cat " and ";.

3. Script is then piped to sh with and into output.