37 Insane Linux Commands Summary

This video rapidly showcases 37 useful Linux commands, ranging from basic file operations and process management to networking tools, system information, and data manipulation. The commands are presented with brief explanations and demonstrated usage.

Basic Navigation and File Operations #

• pwd: Print the current working directory.
• ls: List directory contents.
  • ls -l: Long listing format.
  • ls -a: List all files, including hidden ones.
• cd: Change directory.
  • cd ~: Change to the home directory.
  • cd -: Change to the previous directory.
• touch: Create an empty file.
• mkdir: Create a new directory.
  • mkdir -p: Create parent directories if they don't exist.
• cp: Copy files or directories.
• mv: Move or rename files or directories.
• rm: Remove files.
  • rm -r: Remove directories and their contents recursively.
  • rm -f: Force removal without prompting.
• cat: Concatenate and display file content.
• less: Display file content one page at a time.
• head: Display the beginning of a file.
• tail: Display the end of a file.
• grep: Search for patterns in files.
  • grep -i: Case-insensitive search.
  • grep -r: Recursive search.

Text Editing and Manipulation #

• echo: Display a line of text.
  • Redirect output to a file (>).
  • Append output to a file (>>).
• nano: A simple text editor.
• vim: A powerful text editor.
• sed: Stream editor for text manipulation.

Process Management #

• ps: Report a snapshot of current processes.
  • ps aux: Display all processes running on the system.
• top: Display dynamic real-time view of running processes.
• kill: Send a signal to a process.
• htop: An interactive process viewer.

Networking #

• ifconfig or ip: View network interface configuration.
• ping: Send ICMP ECHO_REQUEST to network hosts.
• traceroute: Trace the path to a network host.
• netstat: Display network connections, routing tables, interface statistics, etc.
• ssh: Secure shell for secure remote access.

System Information and Utilities #

• uname: Print system information.
  • uname -a: Print all system information.
• df: Report disk space usage.
• du: Estimate file space usage.
• free: Display amount of free and used memory.
• man: Display online manual pages.
• history: Display the command history.
• alias: Create an alias for a command.
• sudo: Execute a command as another user (typically root).
• wget: Non-interactive network retriever.
• curl: Transfer data from or to a server.

Data Compression and Archiving #

• tar: Archive utility.
• gzip: Compress files.
• gunzip: Uncompress files.

Permissions #

• chmod: Change file permissions.
• chown: Change file owner and group.

Summary #

The video provides a rapid-fire introduction to 37 essential Linux commands covering file management, text editing, process management, networking, system information, data handling, and basic permissions. Each command is briefly explained, and its usage is demonstrated. The goal is to quickly expose viewers to a wide range of useful tools available in the Linux command line.