Jump around your folders

mark.bash

#!/bin/bash
#This is free adaptation of an idea exposed at http://jeroenjanssens.com/2013/08/16/quickly-navigate-your-filesystem-from-the-command-line.html
#Include this directly in your .bashrc or source it

#Examples:
# [very/deep/path] $ mark deep
# [other/location] $ jmp deep
# $ mark list #will list all your marks
# $ unmark deep

# Quick way to mark a temporary location without naming it
# [deep/deep/folder] $ mark
# Go to the last location you save with 'mark'
# [other/folder] $ jump

# Use your marks as location argument
# $ cat $(path_to deep)/test.txt

MARKPATH=$HOME/.marks

mark(){
    mkdir -p $MARKPATH

	if [[ $1 = "list" || $1 = "ls" ]]; then
		ls -l $MARKPATH
	elif [ -z $1 ]; then
		[ -e $MARKPATH/last ] && rm -f $MARKPATH/last
		ln -s -T "$(pwd)" $MARKPATH/last
	else
		ln -s -T "$(pwd)" $MARKPATH/$1
	fi
}

unmark() {
	if [ -e $MARKPATH/$1 ]
	then
		echo "[+] Drop $1"
		rm $MARKPATH/$1
	fi
}

jmp() {
	if [[ -z $1 && -e $MARKPATH/last ]] 
	then
		cd -P "$MARKPATH/last"
	else
		if [ -e $MARKPATH/$1 ]
		then
			cd -P $MARKPATH/$1
		else
			echo "[x] Unknown mark, I am not going to jump into the void"
		fi
	fi
}

#expand mark absolute path
path_to() {
	if [ $1 ]
	then
		readlink -f "$MARKPATH/$1"
	fi
}

alias j='jmp'
alias m='mark'
alias marks='mark list'

marks_completion

#copy this completion rule in your /etc/bash_completion.d/marks_completion

_complete_marks() {
	local cur opts
	COMPREPLY=()
	cur="${COMP_WORDS[COMP_CWORD]}"
	opts=$(find "$MARKPATH" -type l -printf '%f ')

	if [[ $COMP_CWORD == 1 ]]
	then
		COMPREPLY=( $(compgen -W "${opts}"  -- ${cur}) )
		return 0
	fi
}

complete -F _complete_marks jmp j unmark