Practical Linux Command Line 2.0

Learn to navigate the Linux file system from the terminal using ls and cd, print the working directory, and explore the home directory with folders like documents and downloads.

master autocompletion, history, and the clear command to streamline terminal navigation, using cd, ls, and tab-based path completion to quickly reach folders.

Navigate the Linux file system root, slash, and key directories like /home, /boot, /dev, /bin, /usr, and /opt, while distinguishing the root user from the root directory.

Navigate to the home directory, the per-user workspace in Linux, via tilde or cd. Store user files and configurations there, and learn how /home contains each user's folder.

Master absolute and relative paths in linux by navigating from the home directory to downloads and documents/test folder with cd, tilde, and autocompletion for fast, flexible file access.

Learn how to reveal hidden files in linux using ls -A, then navigate the filesystem with cd and ls to explore root, home, and dot hidden items.

Learn to create, remove, move, rename, and copy files in the Linux terminal with touch, rm, mv, and cp, using dash or underscore in file names in the home directory.

Create and manage directories with mkdir, mv, rm -rf, ls -R, and cp; use mkdir -p for nested dirs and avoid spaces by using underscores or dashes.

Download a text file with wget, view its contents using cat or less, and count lines, words, and bytes with wc.

Write text to a file from the terminal using echo, creating or overwriting with > and appending with >>, as shown with hello.txt.

Configure nano with a dot nanorc file to set tabs to spaces and a tab size of four, enabling consistent indentation in code editing.

Learn to create and run a bash script to automate terminal tasks by writing commands in a .bash file with nano, making it executable, and executing with ./script.sh.

Explore Vim, a text editor. Install with sudo apt install vim, use insert and command modes, save with :w, quit with :q, and configure vimrc (expandtab, tabstop 4, auto indent).

Learn how to run commands with admin privileges, view and change file permissions, and distinguish what you can read, write, or execute in your home directory versus root folders.

Learn to run commands with admin privileges using sudo in the Linux terminal, including creating, editing, and removing files, with caution about system files such as sources.list.

Explore how ls -l shows file owner and group, and how read, write, and execute permissions apply to the owner, group, and others.

Learn how to change a file's owner using chown, including selecting a new owner, handling sudo privileges, and understanding how ownership affects read and write permissions.

Learn to change a file’s permissions for user, group, and others with chmod, adjusting read, write, and execute rights using plus and minus flags.

Install and remove packages on Linux using apt, yum, or brew with a two-step process: update sources and install, then remove packages like git.

Keep your linux packages up to date by running sudo apt update and sudo apt upgrade, then remove unused packages with sudo apt autoremove.

Learn to install and manage software on Ubuntu using snap, including installing tree and Visual Studio Code, listing, refreshing, and removing snaps, with help and upgrade commands.

Learn to locate files with the find command by name across your file system, including hidden files, using path, -name patterns, and max depth constraints.

Learn to use grep to find lines matching a pattern in a file, adjust case sensitivity with -i, and apply regular expressions to lines starting with given text.

Master piping in the Linux terminal to chain commands like ls, wc, grep, and find, redirecting outputs and counting results, and saving results to files.

Learn faster terminal workflows with pipes and search features, and master keyboard shortcuts like tab completion, command history, and copy paste with ctrl shift c/v, ctrl r.

Master working with multiple terminals by opening several terminals, using tabs and horizontal or vertical splits, and leveraging Terminator or tmux for efficient multitasking.

Learn to monitor Linux processes with ps and grep, identify a process by its PID, and terminate it using kill, including a hands-on exercise to kill a less process.

Monitor disk space with df -h on root partition. Use htop to track ram, cpu, and processes, and install via apt or snap to access F5 and F9 for management.

Learn how to remotely connect to a Linux terminal using SSH, including installing OpenSSH server, configuring host-only networking in VirtualBox, and using SSH from any machine to access a terminal.

Schedule and automate tasks on the Linux command line using cron and crontab. Explore timing options and practical examples like updating a log file every five minutes.

Learn to use systemd to run a boot time command, creating a logs folder at /home/aid/logs, and enable the service for automatic startup.