Is it practically useful to decline GUI for a newbie in Ubuntu?

Posted by Kifsif on Ask Ubuntu See other posts from Ask Ubuntu or by Kifsif
Published on 2012-10-05T10:58:28Z Indexed on 2012/10/05 15:54 UTC
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command-line

My Ubuntu is 12.04.

I have just started learning Linux and Ubuntu in particular. To remember commands quicker, I'd like to decline GUI.

But there are some problems. I don't know where installed programs are to launch them.

For example, I have a pdf file. I know that there is a program to view such files. Should it be the case of GUI, I would just click on the pdf-file, and have a look that I use Document Viewer 3.4.0.

Then I would like to launch Firefox Web Browser. Even if I know it is installed, how to find the file to be launched using just CLI is a mystery to me.

Could you suggest me anything.

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