Its essence if we are going to install an application on the terminal with don't know ubuntu version this awill be problem and then we searching an application in search engine like google, once we know if the application is there and it's just a coincidence version of the application can be used for example ubuntu 12, now from here maybe we start to think if we forget our linux version because it can be different versions of ubuntu for example there will be different apps version on ubuntu 12.04 and ubuntu 12.10 .
So we pre- download apps that we use is useful to know the version of ubuntu linux so that we use when install the application does not encounter an error or failure, because the version of the software that we use in different versions of ubuntu it normally would not be able to do will fail in the installation .
Here are two easy ways to determine the version of ubuntu and linux kernel we use is sourced from ( help.ubuntu.com ) :
1 . The first way is by clicking on the button settings can search in the upper right near the shutdown button or can we find on search applications by typing the word "System setting " without the quotes .
2. The second way is to use the terminal command line:
- Open a terminal that is in the application options by click CTRL + Alt + T on your keyboard
- Typing "sudo su" (without the quotes) and enter the password, it will run an application without sudo text while will open an application
- To find out what version of ubuntu in the terminal typing "lsb_release-a" (without the quotes) and "enter" the keyboard it will exit the output of ubuntu version used as in the picture below.
3. How to know the version of the kernel used in Ubuntu is by typing "uname-r" or "uname-a" in terminal ubuntu.
If there are mistakes please forgive and hopefully useful and increase knowledge for me and also for the reader.
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