Welcome to Linux

The open source world is huge and full of tools that will make you look like a computer genius. The first steps may be a little hard, but once you have grasped the main concepts everything will simply feel natural. Most of my trainees when they started using Linux complained that they couldn't run their favorite games or other specific software. My advice would be not to worry about these things. Rather than waste your time trying to make your linux do what you can do on Windows, invest in learning what you can do with Linux. If all the things Linux can do are not useful for you, don't use it. If you need Microsoft Word or Edge, than perhaps running Windows is fine for you. Try to learn what Linux can do, the Linux way. After more than a decade using and learning Linux I am still amazed with it.

The posts here were written for our trainees who basically never had used Linux before. You can find help easily on the Internet, but we found it was helpful to collect a bunch of begginers tips so that they could kickstart more easily.

Welcome to Linux!

Linux is the core of the operational system most commonly used for free software computer environments.

It is the environment in which a very large community of people, with millions of technology 'nerds', study, work, play and interact. Linux users are often interested in understanding and improving it. I'd say Linux is for Windows what Wikipedia is for Brittanica. You may be a simple Linux user just as you can be a Wikipedia reader, but the invitation is always open for you to be a collaborator and co-author of both of them.

What is GNU/Linux?

O GNU/Linux is a set of softwares. The difference is that you can see or edit the source code if you want.

It is not a single software, but lots and lots of them. There are programs for purposes so different as writing books or controlling the computer cooler.

In general, though Read more

Howw to use the command line interface - CLI

With the terminal you may very easily navigate your computer directories and even access the Internet. In fact it is easier to work with folders and files with the terminal than it is with a Graphical User Interface (GUI - a program where you click the folders in order to open them).

Let's learn the basics of navigating using the terminal.

Identification: user@computer:~$

First comes first. For you to navigate, you should know where you are. Have you ever noticed that text that start each new line in the terminal and you cannot delete? That is the identification of the current user, of the current computer and of the current folder. This is very important because, as you'll learn, using the terminal you can actually use different users, different computers and, of course, different folders.

Let's go for an example: say the user is "joe", the computer Read more

How to open a document in terminal

Open a document in command line interface (also called CLI or Terminal) you simply type the name of the program you want to use, followed by the name of the document. Of course, the name of the document is the whole path to it. If you are already in the same directory (you navigated there with cd ) than the name will be enough. You'll find out more about navigating in terminal here

Thus, to open the document example.txt in folder /home/user/Documents , type the following:

user@computer:~$ gedit /home/user/Documents/example.txt

or navigate to the Documents folder and type simply gedit example.txt:


user@computer:~$ cd /home/user/Documents
user@computer:~/Documents$ gedit example.txt
          

To open a document as a super user you need to use the sudo command before the name of the program (or open the terminal as root).

You can also Read more

Deleting Files And Folder Linux

It is quite simple to use terminal to remove files and folders.

Warning: Once a file is removed using this instructions, you won't be able to bring it back. There will be no "trash" where you can bring it back from.

Deleting files (Removing)

The command to delete a file (remove it) is "rm". Thus, to erase the file "test.txt", just do the following: rm teste.txt You don't need to be in the same folder of a file in order to erase it. If you type it's full address you can delete it without the need to navigate there. In order to remove the test.ogg file which is in the "music" folder within my home directory, I can use the following code:: rm ~/music/test.ogg Did you notice that tilde simbol ( ~ )? It represents your home folder. You don't need to type "/home Read more

How Copy Rename And Move Files

Copying

It is quite easy to copy, move or rename a file using the command line interface (cli, terminal, and shell are other names used to refer to the command line).

Use the command cp to copy. Type cp followed by the name of the file you want to copy, and then the name you want to give to the new copy. Here is an example: in order to create a new copy of the file "example.txt" named "example2.txt", do the following:

cp example.txt example2.txt

You can copy a file to a different folder using just the same command. Here is an example:

cp example.txt /var/www/documents/example.txt

Moving and renaming

In order to move files, use the command mv . Just type "mv", the name of the file to be moved and the name the moved file will get. For example: to move Read more

Volume Control in Openbox

Once you start using Openbox you get convinced that it is a very nice competitor for any desktop environment. With a fast and no futility desktop proposal, Openbox doesn't start almost anything on startup out of the box. I mean, nothing but simplicity and performance.

I am trying to keep my Openbox this way and I am trying to stop using the panel. Some panel items I miss though, like the desktop volume control icon.

I remembered that I once tried using a cool software called alsamixer, that allows controlling the volume and other sound card features from terminal. I figured I could use is direct from openbox menu. The result was quite good.

If you want to try it, open the obmenu, create a new menu item and set the command as "xterm -e obmenu". Note that with the command xterm -e you may call from openbox menu Read more

Imagemagick Linux Terminal

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