Utilities to let you easily reach frequently visited but deeply nested directories.

shellmarks.sh

# Utilities for quickly accessing frequently used directories in bash.

# Usage:
#   $ cd /path/to/project/src/
#   $ mark code     # Will create a new shortcut.
#                   # Becomes interactive if a shortcut already exists
#                   # m is an alias for mark. You can also `m code`
#
#   $ code          # From now on, running this anywhere in the shell
#                   # will put you in /path/to/project/src/code
#
#   $ unmark code   # Will remove the symlink and is interactive
#                   # u is an alias for unmark. You can also `u code`

SHELLMARKSDIR="$HOME/.shellmarks"
mkdir -p $SHELLMARKSDIR
function mark_alias { alias $(basename $1)="cd -P $1"; }

function mark { # Mark a directory
    symlink=$SHELLMARKSDIR/$1
    ln -ivns "$(pwd)" $symlink && mark_alias $symlink
}
alias m=mark

function unmark { # Remove a mark
    symlink=$SHELLMARKSDIR/$1
    rm -iv $symlink
    if [ ! -f $symlink ]; then
        unalias $1
    fi
}
alias u=unmark

function shellmarks { # List all existing marks
    LINK_COLOR=$'\e[1;35m'
    RESET_COLOR=$'\e[0m'
    for symlink in $SHELLMARKSDIR/*; do
        test -L $symlink && echo "${LINK_COLOR}    $(basename $symlink) ${RESET_COLOR} -> $(readlink $symlink)"
    done
}

for symlink in $SHELLMARKSDIR/*; do # load all existing symlinks as aliases
    mark_alias $symlink
    test -L $symlink && ( test -e $(readlink $symlink) || rm $symlink ) # remove symlinks if source does not exist
done

There's a utility called fasd that provides a superset of both z and autojump functionality:

https://github.com/clvv/fasd