Linux Commands

Linux File System

• File System Commands

Purpose	Commands
File Navigation	pwd, ls, cd, tree, find, which
File Content	cat, diff, less, head, tail, file
File Manipulate	cp, mv, rm, mkdir, touch, zip, unzip
File Permission	chown, chmod
Link File	ln
Open File List	lsof

Linux Folder Structure

• https://linuxcommand.org/lc3_lts0040.php

Difference between Short Link and Hard Link

• https://stackoverflow.com/questions/185899/what-is-the-difference-between-a-symbolic-link-and-a-hard-link

Understanding stderr and stout stream

• https://www.reddit.com/r/bash/comments/w522np/understanding_stdin_stdout_and_stderr/

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Identifying command

• alias
  • makes alias of a command
• type
  • type of the file
• help
  • help
• man
  • Manual of a command

Command execution

• source
• ./filename

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terminal io

• echo
• tee

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Remote Connection

• ssh
• scp
• rsync
• wget
• curl

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Diagnostic and Management Tools

Purpose	Commands
Disk Management	du, dd, dh, df
Memory ( RAM ) Diagnosis	free
System Resource Monitoring	top, htop
Process Management	ps, kill, pkill

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Miscellaneous Tools

Command	Description
base64	Base64 Encoding and Decoding
expr	Math Expression
cal	Visual Calendar in Terminal
sl	Coz you don't always end up typing ls
cowsay	Because cowsay -f dragon "Run for cover, I feel a sneeze coming on."
date	Linux date utility
lynx	cli web browser

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List of command as Reference

• https://linuxcommand.org/lc3_man_page_index.php