Linux System Administration

This tutorial focuses on finding text in files using the grep command and regular expressions. When working on a Linux system, finding text in files is a very common task…

As a system administrator, knowing how to install, update or delete Linux packages is crucial in order to maintain your Linux hosts and servers. You may have to update your…

The RAM, for Random Access Memory, is a critical component of a Linux system that needs to be monitored closely. In some cases, you might run out of memory, leaving…

As a system administrator, you may have downloaded some archives that you need to extract in order to reveal their files. You may be also backing up an entire database…

ZIP is by far one of the most popular archive file format among system administrators. Used in order to save space on Linux filesystems, it can be used in order…

Every system administrator got this error at least one time in a shell : “bash : command not found“. However, you were pretty sure that you wrote the command correctly,…

After creating disk partitions and formatting them properly, you may want to mount or unmount your drives. On Linux, mounting drives is done via mountpoints on the virtual filesystem, allowing…

As a system administrator, you may be asked to manage disks between different operating systems such as Windows, Linux and MacOS. As a consequence, you may have to format your…

This tutorial discusses the ways to check disk space on Linux using the command line or graphical tools. As a system administrator, you always want to make sure that you…

As a system administrator, creating partitions on Linux for your disks is a very common task. You may want for example to add some extra space to some directories on…