But I hate to ask: where, when and how do I write all these codes, and do I have to make to users???
Depends. Again, I've asked this before but got no answer:
Are you working in the text console or have you set up the X11(graphical) console?
is what the graphical console looks like.
is what the text console looks like.
If you use the text console, you type those commands directly. (Where else?
and if you use the graphical console, you should start a "terminal emulation". It's an application usuallty called "Terminal" or "Console". It's a good idea to set up the graphical console. I've described this in a previous post.
However, in order to set up the graphical console, you have to edit at least one text file. You can use the editor jpico for that. Type
and substitute <Filename> with the file you want to edit. Anyway, if you plan to do more with Linux, I highly
recommend reading a good book. Check out your local library!