Introduction to Unix Commands

Master Unix commands through theoretical and practical experience, guided step by step from fundamentals to using them like a pro, so you get more done in less time.

Master the cd command to navigate directories, move into folders, use tab completion for paths, and return to parent directories with cd .. in a practical UNIX workflow.

Learn how to use the ls command to list files and directories in the current folder and subfolders, and filter results with wildcards, extension, and substrings.

Learn to use the cat command to view file contents, create and edit files, print with line numbers, copy files, and concatenate multiple files into one.

Discover how to use grep to search text patterns, apply word and case options, show line numbers and surrounding context, perform recursive searches, and list files matching patterns.

Explore how the find command line utility searches files and directories by name, type, size, modification time, and permissions, and executes actions like removing empty files.

Learn how the less command pages through file content, supports forward and backward searches with slash and question mark, and exits with q, enabling efficient viewing.

Run the pwd command to print the current working directory, showing your location from the home folder to the root, with practical folder navigation examples.

Use the stat command to reveal file and folder metadata, including devices, permissions, user and group IDs, and creation dates.

Explore how the touch command creates files (empty or with content), updates file timestamps, and creates multiple files at once, while demonstrating modification times.

Learn how to use the chmod command to change file permissions with numeric and symbolic modes, detailing owner, group, and others and checking with stat.

Learn how to use the mkdir command to create single directories, nested trees with -p, and multiple directories. Explore practical examples of building directory trees.

Use the rmdir command to remove an empty directory by specifying its name. The example shows removing the directory and confirming its deletion.

learn how the rm command removes files and directories, including non empty ones, with recursive and interactive options for safe bulk deletion

Learn how the mv command moves files from source to destination and renames files or directories without changing content. It also covers overwriting behavior, interactive prompts, and verifying moves.

Explore how the unix history command displays previously used commands, lets you re-run items by number with exclamation marks, and enables reverse search to quickly locate past commands.

Learn to clear the terminal screen using the clear command or Ctrl+L, both methods instantly clear the shell output and keep your workspace tidy.

Open the man command to access manuals for every Unix command, use less to view the page, search with /, and explore commands like grep for patterns and flags.