How to cat multiple files from a list of files in Bash?
bash, file, loops
Solution
Or in a simple command
cat $(grep -v '^#' files) > output
Problem
I have a text file that holds a list of files. I want to `cat` their contents together. What is the best way to do this? I was doing something like this but it seems overly complex: ``` let count=0 while read -r LINE do [[ "$line" =~ ^#.*$ ]] && continue if [ $count -ne 0 ] ; then file="$LINE" while read PLINE do echo $PLINE | cat - myfilejs > /tmp/out && mv /tmp/out myfile.js done < $file fi let count++ done < tmp ``` I was skipping commented lines and running into issues. There has to be a better way to do this, without two loops. Thanks!