Linux Command Line for beginners

Use cd ~ to go to your home directory. From any directory, cd ~/Downloads takes you to the Downloads folder inside your home directory.

Master creating and deleting files in the linux command line using touch, redirection, and rm; write content with echo, view with cat, and use tab-completion.

Sort ls by time to view recent changes and understand time stamps. Navigate with relative paths like .. and ../../, use cd - and ~, or jump directly to /var/log.

Use the locate and find commands to search for a specific syslog file from the root, compare results, and understand how updatedb refreshes the file database.

Learn to view large files with more and less, display line numbers with cat -n, and chain commands with pipes while searching with slash in syslog.

Learn to manage long-running logs by sending a foreground process to the background with ctrl-z, reattaching with fg, and stopping with ctrl-c while continuing to monitor syslog with tail -f.

Use free and free -h to inspect memory, and top to monitor processes, load averages, and CPU usage, identifying heavy hitters like ffmpeg.

Update the package list with apt-get update, install info and tree, and locate binaries with which. Search software with apt-cache search to find packages like Chrome.

Explore the tree command to visualize directory structures and hidden files, compare with ls -la, and learn options like -h for sizes and -L 1 for depth.

Learn to edit nano and vi by handling a test file, using nano's control x to exit and vi's insert mode i, plus save and quit with :w and :q.

Master vi basics to speed up editing shell scripts. Use escape and O to insert, undo with u, delete with dd, copy with yy, paste with p, and ZZ.