curl --create-dirs -o ~/.config/up/up.sh https://raw.githubusercontent.com/shannonmoeller/up/master/up.sh
echo 'source ~/.config/up/up.sh' >> ~/.bashrc

curl --create-dirs -o ~/.config/up/up.sh https://raw.githubusercontent.com/shannonmoeller/up/master/up.sh
echo 'source ~/.config/up/up.sh' >> ~/.zshrc

curl --create-dirs -o ~/.config/up/up.fish https://raw.githubusercontent.com/shannonmoeller/up/master/up.fish
source ~/.config/up/up.fish

$ up [dir|num|-]
    dir   full or partial name of any parent directory
    num   number of times you'd have to type `../`
    -     previous working directory

/home/chuck/foo/bar/baz/head/foot $ up
/home/chuck/foo/bar/baz/head $

/home/chuck/foo/bar/baz/head/foot $ up 4
/home/chuck/foo $

/home/chuck/foo/bar/baz/head/foot $ up bar
/home/chuck/foo/bar $

/home/chuck/foo/bar/baz/head/foot $ up ba
/home/chuck/foo/bar/baz $

/home/chuck/foo/bar/baz/head/foot $ up <TAB>
bar/    baz/    chuck/  foo/    head/   home/
/home/chuck/foo/bar/baz/head/foot $ up h<TAB>
head/   home/
/home/chuck/foo/bar/baz/head/foot $ up ho<TAB>
/home/chuck/foo/bar/baz/head/foot $ up home/
/home $