If you are using a lot command line moving around file system (like cd /…), then you are sometimes tired typing long folder or files paths. The simple and faster solution is using autojump and you can quickly jump around filesystem. The usage is quite simple and straight forward, after installation use:
$ autojump --add /path to/xxx
…and after that you can jump to that directory using simple command:
$ j xxx
…or if that is only directory starting with x, just:
$ j x
…and you are there.
More options can be found using:
$ autojump -h or $ man autojump
Useful little app for command line users.