Unlock the power of advanced regular expressions in sed, grep, and vim with this comprehensive guide. Learn how to use lookahead and lookbehind assertions, backreferences, conditional statements, non-capturing groups, and atomic groups to enhance your text search and manipulation skills.... Read More

Learn how to use setfacl and getfacl for managing Access Control Lists (ACLs) on Unix-based systems. This tutorial covers basic commands, syntax, and examples for setting and viewing ACLs to provide fine-grained file and directory permissions.... Read More

Learn how to efficiently copy large files using Rsync, a reliable command-line utility. Discover its benefits, advanced options, and real-world examples for seamless file transfers.... Read More

Learn how to streamline command execution in Vim with the OutputCommands function. Execute old commands effortlessly within your current file, boosting productivity.... Read More

Learn the essential Linux commands for user and group administration, from creating and deleting users to modifying group memberships and permissions. Understand the role of the /etc/passwd file in managing user accounts effectively.... Read More