CentOS – Articles, help and tech guides for all versions

Red Hat Virtualization, building a Linux VM This is part 5 of the learning Red Hat series on my blog. Did you know you can use Red Hat as a Virtual Machine host? In fact you can use almost all new flavors of Linux to create a Linux VM host...

Sometimes a root password reset is needed, perhaps a system administrator has left your place of work and not documented the root password, or you have experienced an error in the operating system error that has halted the system in read-only mode. To change a password on Linux, like a...

In the ever-evolving world of Linux, RedHat stands out as one of the most prominent and trusted distributions. At its core lies the ability to effectively manage and manipulate files, a foundational skill every system administrator or enthusiast should master. File manipulation encompasses the basics of creating, reading, and deleting...

GREP (Global Regular Expression Print) is a command-line tool for searching and manipulating text files. It allows you to search for specific text patterns, called regular expressions, within a file or set of files and perform various operations on the matched text. Regular expressions, or regex for short, are patterns...