The essential 'jump' family of bash functions

jump.sh

#Essential jump code
export MARKPATH=$HOME/.marks

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

#mark the current directory as a jump destination
function mark {
    mkdir -p "$MARKPATH"; ln -s "$(pwd)" "$MARKPATH/$1"
}

#remove a mark
function unmark {
    rm -i "$MARKPATH/$1"
}

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

#shorthand for jump
function jp {
    jump $1
}