Easily remember a directory and jump back to it from anywhere in the UNIX filesystem. This version is optimized for Mac OS X. Source: http://jeroenjanssens.com/2013/08/16/quickly-navigate-your-filesystem-from-the-command-line.html

fsjumps.sh

### Filesystem jumping
### Usage: Just add a line to your ~/.bashrc or ~/.bash_profile with "source /path/to/fsjumps.sh".


export MARKPATH=$HOME/.marks

function jump { 
    cd -P "$MARKPATH/$1" 2>/dev/null || echo "No such mark: $1"
}

function mark { 
    mkdir -p "$MARKPATH"; ln -s "$(pwd)" "$MARKPATH/$1"
}

function unmark { 
    rm -i "$MARKPATH/$1"
}

function marks {
    \ls -l "$MARKPATH" | tail -n +2 | sed 's/  / /g' | cut -d' ' -f9- | awk -F ' -> ' '{printf "%-10s -> %s\n", $1, $2}'
}

_completemarks() {
  local curw=${COMP_WORDS[COMP_CWORD]}
  local wordlist=$(find $MARKPATH -type l -printf "%f\n")
  COMPREPLY=($(compgen -W '${wordlist[@]}' -- "$curw"))
  return 0
}

complete -F _completemarks jump unmark