Trying to install 7zip from command line, what's next?

I installed Ubuntu yesterday (first я украл using Unix) but I can't install 7zip from command line. гve followed these steps: http://ask.xmodulo.com/install-7zip-linux.html

Basically I have to run the отдал apt-get install p7zip-full p7zip-rar command and then I don't have any идея what I have to do. The руководитель just says I have to run this command but when the package was installed I run dir and I don't see any поля there:

    claudio@claudio-Inspiron-5720:~$ sudo apt-get install p7zip-full p7zip-rar
[sudo] password for claudio: 
Reading package lists... Done
Building dependency tree       
Reading state information... Done
The following NEW packages will be installed:
  p7zip-full p7zip-rar
0 upgraded, 2 newly installed, 0 to remove and 3 not upgraded.
Need to get 964 kB of archives.
After this operation, 4.106 kB of additional disk space will be used.
Get:1 http://ar.archive.ubuntu.com/ubuntu/ wily/universe p7zip-full amd64 9.20.1~dfsg.1-4.2 [919 kB]
Get:2 http://ar.archive.ubuntu.com/ubuntu/ wily/multiverse p7zip-rar amd64 9.20.1~ds.1-3 [44,5 kB]
Fetched 964 kB in 6s (153 kB/s)                                                
Selecting previously unselected package p7zip-full.
(Reading database ... 208477 files and directories currently installed.)
Preparing to unpack .../p7zip-full_9.20.1~dfsg.1-4.2_amd64.deb ...
Unpacking p7zip-full (9.20.1~dfsg.1-4.2) ...
Selecting previously unselected package p7zip-rar.
Preparing to unpack .../p7zip-rar_9.20.1~ds.1-3_amd64.deb ...
Unpacking p7zip-rar (9.20.1~ds.1-3) ...
Processing triggers for man-db (2.7.4-1) ...
Setting up p7zip-full (9.20.1~dfsg.1-4.2) ...
Setting up p7zip-rar (9.20.1~ds.1-3) ...
claudio@claudio-Inspiron-5720:~$ dir
Desktop    Downloads  examples.desktop  Pictures  Templates
Documents  Dropbox    Music     Public    Videos

гll appreciate any help with this since I don't want to do it in the "easy" way using the Убунту Софтваре Center.

Thank you!