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 ...

Learn how to use a host of Linux commands in these 2-minute video tutorials from Sandra Henry-Stocker, author of the Unix as a Second Language blog. Learn how to use the powerful bc command in Linux ...

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

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 ...

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 ...

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 ...

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 ...

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 ...

Modern shells support command-line editing for efficient recall and correction of commands. Command-line editing is more efficient than using the shell's history mechanism. Shells like KornShell, Bash ...