HELP!! (for when you suck at Linux) // Linux for Hackers // EP3

About this video

Episode 3 of the Linux for Hackers series teaches beginners how to get help inside the terminal instead of memorizing everything. Chuck first clarifies terminology: what most people launch is a terminal emulator, the shell is the interface to the operating system, and the prompt shows the user, host, and current directory, with a dollar sign for a normal user and a pound sign for root. He shows how to identify the running shell with the ps command, noting Bash is the common default and that PowerShell can also run on Linux. After rapidly listing system-discovery commands such as id, hostname, uname, ifconfig, ip, netstat, ss, who, env, lsblk, lsusb, and lsof to create a sense of overload, he introduces the remedies: man pages for a full manual on any command, -h or –help for a shorter list of switches, and apropos for keyword-searching commands and documentation when the exact command is forgotten. The homework is to practise those help tools and complete the Hack The Box Academy quiz.

Key takeaways

• A terminal emulator is the window; the shell, commonly Bash, is the actual interface to the operating system
• Use ps to see running processes and confirm which shell is in use
• Use man followed by a command name for its full built-in manual, and press q to quit
• Use -h or –help with most commands for a concise list of options instead of the full manual
• Use apropos with a keyword to find commands when you know what you want to do but not the command name

Episode details: published April 16, 2021 · 13:14 long. Summary written by Self Growth Videos from the episode itself. Business results and any income figures mentioned are NetworkChuck’s own claims, shared for education — they are not typical or guaranteed.

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