The Ultimate Linux Command Line Walkthrough

Master the Linux command line, the open source tool used by IT professionals daily to navigate directories, create scripts, search files, and convert formats on Unix-like systems.

Install Ubuntu Linux in a virtual box by downloading the ISO, creating a 10 GB disk, allocating RAM, and booting from the image to set up the desktop and terminal.

Learn how to use the ls command to list directory contents, distinguish files and directories, apply options like -l and -d, use wildcards, and consult the manual with man ls.

Learn the cp command to copy files and directories, mastering its syntax and options, including copying a single file from desktop to documents, and performing recursive copies of directories.

Learn to use mkdir to create directories and directory trees in the terminal, including the -p option for creating parent paths, with practical examples on the desktop for scripting.

Explore the cd command to move between directories, navigate from desktop into subfolders, use .. to reach the parent directory, and try -L or -B options.

Delete files or directories with the rm command, using -r to remove folders and their contents, as shown by deleting a file and recursively removing a directory tree.

Grep prints lines that match a pattern in a text file. Use it to search for errors in log files and count matches with minus C to aid debugging.

Explore how the cat command concatenates files and prints to the standard output. Learn to view and combine multiple text files in the terminal.

Use sudo to run commands with root privileges. Learn how sudo elevates permissions and lets you switch user contexts without logging in as another user.

Explains how to use the df command to display free space on filesystems with block size options, including gigabytes, megabytes, and terabytes.