Day-2 of DevOps Challenge: Mastering Basic Linux Commands for Efficient System Management

Hello dosto, welcome to Day-2 of my 90-day DevOps challenge! 🚀 Today, I'll share some basic Linux commands that are essential for managing and navigating your system 🖥️.

• ls 📁 - Lists a directory’s content

• pwd 📍 - Shows the current working directory’s path

• cd 🔄 - Changes the working directory

• mkdir 🗂️ - Creates a new directory

• rm 🗑️ - Deletes a file

• cp 📋 - Copies files and directories, including their content

• mv 🚚 - Moves or renames files and directories

• touch ✨ - Creates a new empty file

• file 🗃️ - Checks a file’s type

• zip and unzip 🗜️ - Creates and extracts a ZIP archive

• tar 📦 - Archives files without compression in a TAR format

• nano, vi, and jed ✏️ - Edits a file with a text editor

• cat 📜 - Lists, combines, and writes a file’s content as a standard output

• grep 🔍 - Searches a string within a file

• sed ✂️ - Finds, replaces, or deletes patterns in a file

• head 📰 - Displays a file’s first ten lines

• tail 📄 - Prints a file’s last ten lines

• awk 🧩 - Finds and manipulates patterns in a file

• sort 🔀 - Reorders a file’s content

• cut ✂️ - Sections and prints lines from a file

• diff 🔎 - Compares two files’ content and their differences

• tee 📥📤 - Prints command outputs in Terminal and a file

• locate 🔎 - Finds files in a system’s database

• find 🔍 - Outputs a file or folder’s location

• sudo 👑 - Runs a command as a superuser

• su 👤 - Runs programs in the current shell as another user

• chmod 🔧 - Modifies a file’s read, write, and execute permissions

• chown 🏷️ - Changes a file, directory, or symbolic link’s ownership

• useradd and userdel 👥 - Creates and removes a user account

• df 💾 - Displays the system’s overall disk space usage

• du 📊 - Checks a file or directory’s storage consumption

• top 📈 - Displays running processes and the system’s resource usage

• htop 🖥️ - Works like top but with an interactive user interface

• ps 📸 - Creates a snapshot of all running processes

• uname 🔍 - Prints information about your machine’s kernel, name, and hardware

• hostname 🏠 - Shows your system’s hostname

• time ⏱️ - Calculates commands’ execution time

• systemctl 🔧 - Manages system services

• watch 👀 - Runs another command continuously

• jobs 📋 - Displays a shell’s running processes with their statuses

• kill 💣 - Terminates a running process

• shutdown 📴 - Turns off or restarts the system

• ping 🌐 - Checks the system’s network connectivity

• wget 📥 - Downloads files from a URL

• curl 🌐 - Transmits data between servers using URLs

• scp 🔒📂 - Securely copies files or directories to another system

• rsync 🔄 - Synchronizes content between directories or machines

• ifconfig 🌐 - Displays the system’s network interfaces and their configurations

• netstat 📡 - Shows the system’s network information, like routing and sockets

• traceroute 🛤️ - Tracks a packet’s hops to its destination

• nslookup 🔍 - Queries a domain’s IP address and vice versa

• dig 🗃️ - Displays DNS information, including record types

• history 🕒 - Lists previously run commands

• man 📖 - Shows a command’s manual

• echo 🗣️ - Prints a message as a standard output

• ln 🔗 - Links files or directories

• alias and unalias 📝 - Sets and removes an alias for a file or command

• cal 📅 - Displays a calendar in Terminal

• apt-get 📦 - Manages Debian-based distros package libraries