How to add a new line (\n) between each file being concatenated

Question

How should I modify this line to add a new line (\n) between each file being concatenated?

find /disk/data/source/* -name '*.xml' -exec cat {} \; > /home/userid/merged-file.xml

Answer 1

find accepts multiple -execs in one command. For example:

find /disk/data/source/* -name '*.xml' -exec cat {} \; -exec echo "" \; > /home/userid/merged-file.xml 

Answer 2

Using awk instead of cat:

find /disk/data/source/* -name '*.xml' \
    -exec awk 'NR!=FNR&&FNR==1{print ""} 1' {} + > /home/userid/merged-file.xml

Answer 3

Since you are already using find, try this:

find /disk/data/source/* -name '*.xml' -exec cat {} \; -exec echo \; > /home/userid/merged-file.xml

And if you want to get rid of the extra newline at the end, you can add | head -n-1.