On machine1 (leopard)
find folder1/media -print > leopard_media.txt
On machine2 (panther)
find folder1/media -print > panther_media.txt
upload leopard_media.txt to panther, sort the files together, ready for uniq and tarring together.
cat leopard_media.txt panther.txt | sort | sed 's/^M//g' > both_media.txt The sed command removes whitespace from the end of the lines - to get ^M do Ctrl+V then Ctrl+M uniq -u both_media.txt > missing_media.txt tar cvfz panther_media.tar.gz -T missing_media.txt