A bash script for moving up directories.
Create an alias in your .bashrc file:
up = ". /[absolute path to up script]/up"
Then, try opening a new bash terminal, and type the following:
$ up
Your shell should move up a directory automatically (to /home if your bash is configured to start in your home folder), as if you'd typed cd ...
If you're really deep in - say, in a directory called /home/joe/files/data/junk/stuff/random/misc/garbage - and want to jump out of multiple levels of directory at once - say, four levels - type:
$ up 4
And your shell will move up four levels at once to /home/joe/files/data/junk, as if you'd typed cd ../../../...