Hello, after installing Linuxcnc 2.7.14, my terminal commands don't work

Hello, after installing Linuxcnc 2.7.14, my terminal commands don't work
lsusb
sudo apt-get install caja
sudo apt-get install gedit

j@debian:~$ lsusb
bash: lsusb: nie znaleziono polecenia
j@debian:~$



j@debian:~$ sudo apt-get install caja
[sudo] password for j:
Czytanie list pakietów... Gotowe
Budowanie drzewa zależności
Odczyt informacji o stanie... Gotowe
E: Nie udało się odnaleźć pakietu caja
j@debian:~$


j@debian:~$ sudo apt-get install gedit
[sudo] password for j:
Czytanie list pakietów... Gotowe
Budowanie drzewa zależności
Odczyt informacji o stanie... Gotowe
E: Nie udało się odnaleźć pakietu gedit
j@debian:~$

did you get your DEPENCIES updated to ARCHIVE
look updating Debian archives

I only updated after installing the system when asked for it alone

seams you updated the Kernel not the Linuxcnc version
PLEASE Post the output of terminal command
uname -a

and
cat /etc/issue

j@j:~$ uname -a
Linux j 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686 GNU/Linux
j@j:~$

j@j:~$ uname -a
Linux j 3.4-9-rtai-686-pae #1 SMP PREEMPT Debian 3.4.55-4linuxcnc i686 GNU/Linux
j@j:~$ cat /etc/issue
Debian GNU/Linux 7 \n \l

Check this out
forum.linuxcnc.org/38-general-linuxcnc-q...itory-expired#155502

Still nothing

Edit your /etc/apt/sources.list to exactly what is shown in the linked post.

Run sudo apt-get update
Then you can install extra packages as required.
I know this works. I did a clean install of Linuxcnc 2.7.14 iso 4 days ago and made the changes, then I posted the required changes.
Note that all lines with wheezy/updates have been commented out.

To install caja the following 2 lines must be added to /etc/apt/sources.list after doing the above

Then run
lsusb is from usbutils
run
I have confirmed this working

Thanks a lot BeagleBrainz I did as you advised me and it's ok.
Please explain to me if I can or must by clicking this update, best regards and thank you.

You can, I think the only update that will be applied is the Linuxcnc update from 2.7.14 to 2.7.15.
I'm pretty sure all the major system\core software from the Debian repos have been included in the iso.