Today I saw a posting asking “what does this command do?”

ls -R | grep “:$” | sed -e ’s/:$//’ -e ’s/[^-][^\/]*\//–/g’ -e ’s/^/ /’ -e ’s/-/|/’

Hint: it is related to my post which is now part 1.

I have to say, this clever use of 30 year old tools is just excellent. command line version using sed is just super clever. Very cool.