Category Archives: Uncategorized

1. vi – Part 1 This lesson is about VI, which I have used many times throughout the course, but without going into detail. VI is a text editor for the console. Of course, VI cannot be compared with text editors on graphical interfaces in which you can use the mouse type in bold and […]

1. File systems, fdisk part 1 This lesson is about different file systems and how to edit them with various tools. Let’s first take a look at the individual file systems. A file system defines the framework for how data is organized on a hard drive. Or another data carrier, saving files, searching for files, […]

1. du, df In the last lesson, we learned how to create file systems from scratch. The next lessons are about observing these file systems using various tests to keep arrows free, correcting errors, or making new settings. First, let’s look at the command du du estimate file space usage summarize disk usage of the […]

1. mount, umount Let’s go back to the last lesson about petitions. With Fdisc we have defined the basic structure of a linux file system, and with mkfs we have installed the corresponding file system. A crucial step in order to be able to use the corresponding petition is still missing, namely mounting the file […]

1. Permissions, chmod Now we come to the permissions. Every file and every directory has certain permissions which say who the sad file belongs to, who can read it, who can write it or write to it and who can execute it. With LS and the option L, we can display the corresponding permissions for […]

1. hardlink, softlink, ln This lesson is about socalled links there are hard links and soft links what is a hard link? Every file in a Linux system has at least one hard link which is the pointer that points to the storage area on which the file is stored. We are only able to […]

1. locate, whereis, which, type We have now actually reached the last section of the course 101. This is mainly about finding files in the main area of knowledge. In number 104 seven, you can read the following on the lpi website know the correct locations of files in the files system hierarchy standard. Know […]

1. The shell environment This lesson is about the shells and corresponding shell scripts. We already talked about shells in the 101 part of the course, but we just scratched the surface here. We want to deepen the whole thing a little bit. When a user logs onto a linux system the first thing that […]

1. Chained commands This chapter 105 two has the heading Adept or write simple scripts. That sounds a lot worse than it is. Because the nice thing about Bash programming is that you can use any Linux command here. So you can use all commands that you have have learned in this course so far, […]

4. case We can also program this calculation program with other commands instead of if else if and else we could also use the key, the case command here. So let’s edit the script again. And we can leave the upper part of the script like this. We remove everything from the first if here. […]