These commands are essential when you're working with files and directories.

Sed is a non-interactive text editor that operates on piped input or text files. By providing it with instructions, you can make it modify and process text in files or streams. The most common use ...

This command will create multiple split files, each containing 4 lines . Verbose Mode and Customizing Suffix When using the split command, you can enable the verbose mode to receive a diagnostic ...

The Linux find command makes it easy to find files on your system – even if you don’t remember their names or exactly when you last updated them. Some of the options are a bit more challenging than ...

The grep command is a handy, reliable tool for searching for files or information. This tutorial illustrates 10 ways to take advantage of its power and flexibility. From the tutorial: Windows search ...

When you need to enforce password changes for users on Linux machines, the chage command-line tool is a must-have. As a Linux admin, you’re probably accustomed to passwd, chown, chmod, and chgrp…all ...

As a relatively isolated junior sysadmin, I remember seeing answers on Experts Exchange and later Stack Exchange that baffled me. Authors and commenters might chain 10 commands together with pipes and ...