The find command is one of the strangest Linux programs you’ll use. It’s essential enough to be omnipresent, yet obscure ...

The Rise of Time-Sharing: Time-sharing systems allowed multiple users to access a single computer simultaneously. This ...

The tree command is perfect for viewing your entire directory structure at a glance. It shows folders and files in a clear, tree-like layout right in the terminal. You can control how deep it goes, ...

Linux is constantly evolving, and with it the tools that its fans use on a daily basis. However, some of the classics such as iptables , which has been replaced by nftables , are now not only outdated ...

Ever tried to execute a command on your Linux system and received a “Permission Denied” error? The simplest solution to counter this error is using the “sudo ...

Quick: If you shout "regular expressions" in a crowd of Linux users, what happens? Answer: Everyone will tell you the right way to use them, and every answer will be different. Regular expressions -- ...

Log files. They're there for a reason -- to keep track of what goes on behind the velvet curtain of your operating system. When things go wrong, entries are added to those log files, so you can view ...

If you’re new to Linux or command-line tools, mastering grep command can make searching through files quick and efficient. The grep command is a powerful tool for finding specific text in files, but ...