Try
Blame MS for this one.
Unfortunately, someone at Microsoft made the slashes in DOS the wrong way round, Windows inherited it and they've never corrected it. Consequently, generations of innocent Windows users are trained to think that local paths should be one way round and network paths the other. They shouldn't - they both do the same thing and should use the same character.
If you combine that with MS's spastic insistence on retaining drive letters, chaos ensues.
Hence why, when you type a web address, you have an internal brain-clunk as you have to change from the idiotic Windows-style C:\Users\JoeBloggs\ to the rest of the world's /home/JoeBloggs/ or http://bbc.co.uk/iplayer/
Oh and remember to leave a space - the path is an argument to the cd function
Also, when using cd
Remember you can type a partial directory name and press tab to have auto-complete finish it for you.
Also remember that accessing certain folders may require super-user permissions. In this case, don't log in as root or anything drastic, just type
sudo before your command and it will ask for your super-user password
Have a look at
https://en.wikipedia.org/wiki/Filesystem_Hierarchy_Standard for a bit more info
