Because of the open-source, collaborative nature of Linux, there is no charge whatsoever to try Linux. You can install the OS free of charge on an unlimited number of computers without paying anything towards licensing. This is the case for both the server editions and the desktop editions of...
Sudo is a tool for privilege escalation in Linux. It can be used to grant ordinary users the right to execute certain commands as root.
-rwSrw-rw- 1 linuxhandbook linuxhandbook 0 Apr 12 17:52 test.txt The S as SUID flag means there is an error that you should look into. You want the file to be executed with the same permission as the owner but there is no executable permission on the file. Which means that not ev...
How to check your Linux version: easy ways to view the distribution and version number You can find your current Linux version and distribution in a few easy steps. This information is crucial when it comes to updates, tools, and troubleshooting. Keep reading to find out how to check your ...
What is sudo (su 'do')? Sudo is acommand-lineutility forUnixand Unix-based operating systems such asLinuxandmacOS. The utility provides an efficient way to temporarily grant users or user groups privileged access to system resources so that they can run commands that they cannot run under th...
What is SELinux? The SELinux security module is built into the Linux kernel and can be activated on a number of Linux operating systems (distributions). By using SELinux, only essential access to the operating system is permitted. This gives administrators more control over running processes.…...
sudo docker run hello-world If Docker is properly installed, you will see a message confirming its installation and functionality. Congratulations! Docker is now successfully installed on your Linux system. Creating a Container in Docker in Linux ...
Now that we have identified that/dev/sdarefers to the hard disk, let us now look at the commands we can use to get more information about our hard disk and the partitions within it. The first command we use isfdisk: $ sudo fdisk -l Disk /dev/sda: 465.76 GiB, 500107862016 bytes, 97...
The/etc/subuidfile is an essential component of user and group management in Linux systems, particularly in multi-user and containerized environments. By defining subordinate user ID ranges for individual users or processes, this file enables the creation of isolated user namespaces. Therefore, this...
So, sudo rm -rf is a dangerous Linux command? Well, any command that deletes something could be dangerous if you are not sure of what you are deleting. Considerrm -rf commandas a knife. Is knife a dangerous thing? Possibly. If you cut vegetables with the knife, it’s good. If you...