Linux Command Line

Explore navigating the Linux filesystem with core commands like pwd, ls, and cd; create directories, manage files with rm and cp, and use wildcards and aliases to locate data.

Learn to view and manipulate text files on the Linux command line using cat, more, less, head, tail, and redirect and pipe outputs, with practical examples.

Explore Linux file management with touch to create empty files, brace expansion for multiple names, and cp mv rm with recursive and interactive options, directory handling and the file command.

Learn how to manage Linux processes with ps and ps -aux, including forest view and pgrep, and monitor with top, then terminate rogue processes using kill and killall.

Explore managing storage on the Linux command line by identifying disks, mounting and unmounting partitions, making mounts persistent with fstab, and diagnosing space usage with df and du.

Master locating executables with which, whereis, and type, then locate with update db and the find and grep commands for recursive, colorized, case-insensitive searches, redirecting errors to /dev/null.

Master Linux command line techniques for multitasking with foreground and background processes, using Ctrl+Z, bg, and ampersand. Learn to chain commands, manage history, and build useful aliases.

Explore how environment variables power the linux command line, including system versus user variables, path handling, and persisting settings across shells via .bashrc and /etc/profile.d.

Explore exporting variables to create global environment variables in linux, distinguish between local and global variables, understand subshell behavior, and manage variables across /etc/profile.d and bashrc.

Explore how Linux file permissions govern read, write, and execute rights for owner, group, and others, and manage them with chmod, chown, and chgrp.

Explore Linux file systems and identify the active one with mount. Compare ext3, ext4, XFS, and Btrfs, and discuss read-write versus read-only mounting and file size limits.

Discover how Debian-based systems manage software with dpkg, apt-get and apt, handle dependencies, install deb packages from repos or vendor downloads, and add repositories with keys.

Learn to manage software on Red Hat-based systems using rpm, yum, and dnf, covering dependencies, repositories, epel, and installing or removing packages such as webmin.

Learn how to install from source on Linux by extracting tarballs, running make config, compiling with GCC, and optionally installing with sudo for system-wide use.

Explore vi and vim on the Linux command line, learn the two modes (command and insert), and master essential colon commands for saving, quitting, and editing efficiently.

Master vi and vim editing in linux by deleting lines with dd or :d, yanking and putting text, and using ranges; explore search and replace, line numbers, and .vimrc.

Learn the Linux command line nano editor, its Pico heritage, and essential shortcuts for editing, saving, and searching on text files.