Linux Beginner Commands || Linux command Line

Master the echo command across Linux, Windows, and macOS by printing text to the terminal, redirecting output to files, and differentiating overwrite versus append with > and >>.

Master the cd command to traverse the file system, move between folders, and verify your location with pwd. Use tab completion and clear the screen for efficiency.

Learn to view file contents with cat, use cut as an alternative, and apply head, tail, and base64 for encoding and decoding.

Learn to use the find command to search file and folder names with asterisks, matching extensions like .txt or .doc, and to start or end with specific patterns.

The grip command searches file contents, not names, and highlights matches like echo; it supports file types and can search everything with an asterisk, possibly erroring if nothing is found.

Learn how the sudo command runs commands as another user, including root, after a password, and explore the root directory in a multi-user Linux system.

Learn how to view and adjust file permissions in Linux using ls -l and chmod, covering owner, group, and others with read, write, and execute rights.

Learn to download files with the widget command (wget) from a link, save them to folders, and copy image links to fetch a picture of puppies.

Learn to use curl to interface with http, https, and ftp, download data, and save output to a file. Control bandwidth with limit rate and explore the curl manual.

Explore how archives group files into compressed formats like zip, tar, and 7z, then practice extracting and creating archives both via the user interface and the command line.

This lecture covers adding a new Linux user with sudo useradd, creating a home directory, setting a password, and logging in on a multi-user Linux system.

Learn how the rm command removes files and directories in Linux, including empty folders and recursive deletion with rm -r; compare with rmdir and consult the manual for options.

Learn how to use the cp command in Linux to copy files and directories, specify destinations, copy multiple items, use recursive mode for folders, and apply patterns or regular expressions.

Use the mv command to move files and directories, rename items, and perform practical examples from the home directory to the desktop via the terminal.

Learn to use mkdir to create folders, including directories with the p flag, and set permissions with the m mode (read and write seven seven seven; read-only five five five).

Discover how pushd and popd manage a directory stack to traverse locations by pushing the current directory and popping to return, illustrating first in, last out and tilde versus root.

explore how the chown command changes file ownership in linux, differentiate it from chmod, and see how the owner and groups determine who can read, write, or run a file.

explore the wc command to count lines, words, and bytes in files, plus using flags like -l and -b to view specific counts and understand total outputs across multiple files.

Use the diff command to see differences between files and folders, highlighting the exact lines that differ. The s flag lets you check if two files are identical.

Master the man command, an interface to system reference manuals, and learn how sections 1–9 organize documentation, with some commands spanning multiple sections.

Use the ps command to view current processes, showing user, pid, start time, and runtime; explore Unix, BSD, and new long option formats like ps -ax and ps -u.

Learn how to use the Q command to send the kill signal to a single process, locate it by PID, and understand the effects of signal nine.