Concatenating Files And Insert New Line In Between Files

Question

I have multiple files which I want to concat with cat. Let\'s say

File1.txt 
foo

File2.txt
bar

File3.txt
qux

I want to conc

Answer 1

If you have few enough files that you can list each one, then you can use process substitution in Bash, inserting a newline between each pair of files:

cat File1.txt <(echo) File2.txt <(echo) File3.txt > finalfile.txt