I have this:cd $(dirname $(dirname $(dirname $0))) &&which will cd to project root.Is there shorthand for this somehow, where I can just be like:cd 3 &&  # not quite, but you get the ideaor whatever, I mean why not you know?Maybe a command like so would be ideal:cdx 3 &&since cd has no idea that 3 is not a file or directory.
cd 3 times to great-grandparent dir
cd command;dirname