Linux Tutorials

4 minutes read
Ubuntu is an open-source operating system developed by the San microsystems. Linux allows users and in this case developers to make changes to the program without prior authorization from the creator. You can gather a deeper understanding of Ubuntu Linux from various networking book written by various professionals concerning this topic. There are numerous cookbook and handbook publications about the basics of Linux as an OS and the programming languages associated with this OS.
a minute read
In this first script I will show you all the details and preparations that you will need to do prior creating an running your first Linux script. I will use VIM text editor (see the tutorial in the link), but you can use any editor that you might like.
a few seconds read
Are specified by adding them in numeric/digit mode, as they are kept in file’s inode. This way previous permission settings are lost and overwritten by the new ones.
2 minutes read
Git Commands List
2 minutes read
GIT is a revision control system that allows multiple contributors to work on same projects/files. Is also useful if you have more servers/vms/workstation that you manage and you want to deploy “recipes”/scripts/configurations on them. With GIT, you work locally, push the changes to the repository server and then get your files from any location you want. GIT tracks the changes made to the files and if a config is not working it can be reverted in no time.
a minute read
Each Linux/Unix command has 3 communication channels: input, output and error. The output can be filtered and then redirected and by this way parts of it can be captured, depending on the needs. Redirecting the output to a file, using > or >>: > – if the file mentioned does not exist it will be created, and if it does exist it will be overwritten; ls -la > testfile1.txt >> – if the file mentioned does not exist it will be created, and if it does exist the information it...
3 minutes read
Metacharacters We often want to refer to a group of files or directories that have a common characteristic. To do this, there are some small constructs which helps the user to filter the needed files. For example if in a folder we have a lot of jpg, mp3 and doc files and we would like to list only the doc files, in order to do this we will have to filter the files: The command is: ls -l *.doc But there are a lot of useful filters that will help us a lot. * – replaces one or more characters: ls...
2 minutes read
Here is a list that contains one of the most used Linux commands, and a short explanation for them: ls – list – lists files and directories, can be used with a lot of options like: -a, -R, -l, -g, -r; pwd – print working directory – shows the path of the current directory; ifconfig – interface configuration – used to view and change the configuration of the network; cd – change directory – used to change the current working directory; df – disk free – must be used with -h opt...
a minute read
Don’t miss E3 2017, everything will be starting on June 13, 2017 at the Los Angeles Convention Center. Biggest players in IT world, like Ubisoft, Electronic Arts, Microsoft, Nintendo, Sony and Bethesda , will be there to offer interviews, live streams, press conferences, announcements and more. Here you can find the full list of exhibitors. At this moment it’s unclear what new games will be revealed at E3, but you can find the most wanted and anticipated games of E3 2017 below: New Assassin...
4 minutes read
vim Text Editor vim is a very powerful and versatile modal text editor, it is used by novice, advanced and very experienced users also, in their day to day work or tasks. I might look difficult to understand the way this text editor works, but trust me, it’s not hard at all. From the start you must know that vim has four modes: insert mode – in which you type text as in any other editor (to enter in this mode press “i” key); normal mode – provides ways to manipulate and navigate text (...