Linux Tutorials

4 minutes read
The Linux operating system has the highest rate of popularity for PCs. It is an open-source code that allows anybody to create their unique operating system. There are many benefits of using the Linux system, including that it is free and stable. Many corporations turn to Linux because it is easy to use, very stable, and customizable.
4 minutes read
Ethical hacking is an authorized attempt to gain unauthorized access to a system, access the rest of restricted data, or find vulnerabilities in an application. Ethical hackers are contracted experts or employees whose duty is to identify weaknesses in an organization's system or a network through an ethical hacking process and possibly seal these vulnerabilities.
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...