Can someone point me to docs on Ubuntu?

I SSH'ed into the server, I get this:

login as: root
root@'s password:
Welcome to Ubuntu 14.04 LTS (GNU/Linux 3.13.0-30-generic i686)

 * Documentation:  https://help.ubuntu.com/

716 packages can be updated.
377 updates are security updates.

Last login: Thu Sep 24 11:58:09 2015 from ppp0063.fal.centurytel.net
root@oem-OptiPlex-GX620:~# ls -l
total 0
-rw-r--r-- 1 root root 0 May 11 14:01 logfile
root@oem-OptiPlex-GX620:~# cd var
-bash: cd: var: No such file or directory
root@oem-OptiPlex-GX620:~# ^C

Do unix commands not work on ubuntu?
Richard KortsBusiness Owner / Chief DeveloperAsked:
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"ls -l" gives "Total 0" because the current directory contains just an empty file "logfile":

-rw-r--r-- 1 root root 0 May 11 14:01 logfile

"cd var" gives an error because there is no "var" subdirectory under the current directory.
Use "cd /var" to go to the "var" subdirectory which is located directly under "/".

And of course, unix commands do work on ubuntu!

As for the docs: Use the man pages ("man command" or "man man" for the "man" command itself)
or look where you've alredy been directed to at login:

 * Documentation:  https://help.ubuntu.com/

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Sean JacksonInformation Security AnalystCommented:
Run 'pwd' and that will tell you what directory you're currently in. 'ls' will show you the contents of the directory, and you can see sub directories that way too.

If you're in /home or /root, you won't see a /var. Run 'cd ..' to get back to / and you'll then see /var.
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