Linux Commands for Beginners PDF: 60 Commands That Cover Almost All VPS Work

Last updated: 10 October 2026

The black terminal window looks scary the first time you open it. But Linux is not about memorising hundreds of commands. Around 60 commands cover almost everything a beginner, a student or a new VPS owner does every day. This guide is a complete linux commands for beginners pdf-style reference: commands grouped by task (files, permissions, processes, networking, packages, users and disk), each with a real example and a one-line explanation. At the end you get a one-page cheat-sheet table and a downloadable PDF version to keep on your desk or phone.

Quick answer: The most important Linux commands for beginners are pwd, ls, cd, mkdir, cp, mv, rm, cat, nano, grep, chmod, sudo, ps, kill, ping, ssh, apt, df and free. Learn them in groups (files, permissions, processes, network, packages, disk) and practise on Ubuntu using WSL, a Mac terminal or a cheap VPS.

Where to practise Linux commands (Windows, Mac, Android, VPS)

You do not need to wipe your laptop and install Linux. All examples in this guide were written for Ubuntu 24.04 LTS, the most common Linux on cloud servers, and they work the same on newer Ubuntu releases and most Debian-based systems.

On Windows: WSL

Windows 10 (version 2004 or later) and Windows 11 can run real Ubuntu inside Windows using WSL (Windows Subsystem for Linux). Open PowerShell as administrator and run:

wsl --install

This turns on WSL and installs Ubuntu by default, as explained in Microsoft's official WSL install guide (opens in new tab). Restart the PC, open Ubuntu from the Start menu and create a Linux username and password.

On Mac: Terminal

macOS already has a Unix terminal. Open Terminal (Spotlight > type "Terminal"). Most commands in this guide work as-is. A few Linux-only tools (apt, systemctl, ip, free) are not on macOS, so use a VPS or a virtual machine for those.

On Android: Termux

Install Termux from F-Droid or its GitHub releases page. The Termux project (opens in new tab) says its Google Play build is experimental, with missing features. In Termux, use pkg install <name> instead of sudo apt install.

On a real server: a cheap VPS

The best practice ground is a real Linux server. Oracle Cloud's free tier gives you one at no cost (see our Oracle Cloud free tier guide), or you can rent a low-cost VPS. Once you have one, follow our guide to connect to a VPS using SSH from Windows, Mac or Android.

If you want a paid VPS to practise on, compare options in our best VPS hosting in India guide. or. Contabo gives more RAM for the money, but it has fewer Indian-friendly support options; Hostinger is easier for first-timers and accepts UPI.

How a Linux command is written

Almost every command follows the same pattern:

command -options arguments

• command: the program, e.g. ls.
• options (flags): change behaviour, e.g. -l for a long list. Short flags can be combined: -la = -l + -a.
• arguments: what the command works on, e.g. a file or folder name.

Three rules save beginners a lot of pain:

1. Linux is case-sensitive. File.txt and file.txt are two different files.
2. Paths matter. / is the root of the whole system, ~ is your home folder, . is the current folder and .. is the parent folder.
3. Use Tab and arrow keys. Press Tab to auto-complete names and Up arrow to repeat previous commands.

Stuck? Every command has a manual page and a help flag:

man ls        # full manual for ls (press q to quit)
ls --help     # short help text

File and folder commands

These are the commands you will type most often.

Examples with explanation:

pwd

Prints your current location, such as /home/sanjeev.

ls -lah

Lists all files (including hidden ones starting with .) with sizes in KB/MB.

cd ~        # go to home folder
cd ..       # go up one folder
cd -        # go back to the previous folder

Three handy ways to move around.

mkdir -p projects/blog/images

Creates the whole folder path in one go; -p creates missing parent folders.

cp -r projects projects-backup

Copies a folder and everything inside it (-r = recursive).

mv report.txt reports/

Moves a file into the reports folder. To rename, give a new name instead of a folder.

rm -i old.txt

Deletes a file but asks for confirmation first (-i). Linux has no Recycle Bin, so deleted files are gone.

find /var/log -name "*.log" -mtime -1

Finds .log files changed in the last 24 hours.

Viewing and searching inside files

tail -f /var/log/syslog

Shows new log lines live as they are written. Press Ctrl + C to stop. Very useful when debugging a web server.

nano /etc/hosts

Opens a file in the nano editor. Save with Ctrl + O, Enter, and exit with Ctrl + X. System files need sudo nano.

grep -rn "DB_PASSWORD" /var/www/site

Searches every file in a folder (-r), showing line numbers (-n).

cat access.log | grep "404" | wc -l

Counts how many 404 errors are in a log. The | (pipe) sends the output of one command into the next.

Permission and ownership commands

Every file in Linux has an owner, a group and permissions for three types of people: owner (u), group (g) and others (o). Each can have read (r=4), write (w=2) and execute (x=1).

When you run ls -l, you see something like -rwxr-xr--. That means the owner can read/write/execute, the group can read/execute and others can only read.

Common permission numbers:

• 644: files on a website (owner can edit, everyone can read).
• 755: folders and scripts (owner full, others read and enter/run).
• 600: private files such as SSH keys.

chmod +x deploy.sh

Makes a script executable so you can run it with ./deploy.sh.

chmod 600 ~/.ssh/id_ed25519

Locks your private SSH key so only you can read it. SSH refuses keys with loose permissions.

Security warning: Never "fix" an error with chmod -R 777. It gives every user on the server full write access and is a common way WordPress sites get hacked. Use the correct owner with chown instead.

Process and service commands

A process is any running program. A service is a background process managed by systemd, such as nginx, MySQL or SSH.

ps aux | grep nginx

Finds nginx processes and their process IDs (PIDs).

kill 1234
kill -9 1234

The first politely asks process 1234 to stop. Use -9 (force kill) only if it refuses, because it does not let the program save data.

sudo systemctl restart nginx
sudo systemctl enable nginx

Restarts nginx now, and makes it start automatically at boot.

sudo journalctl -u ssh --since "1 hour ago"

Shows SSH service logs from the last hour, handy for spotting login problems. If your site shows a gateway error, our 502 Bad Gateway nginx fix guide uses these exact commands.

Networking commands

ping -c 4 8.8.8.8

Sends four test packets to Google DNS. If this works but ping google.com fails, your DNS is broken.

curl -I https://example.com

Shows only the HTTP response headers, e.g. HTTP/2 200 or 301. Great for checking redirects and SSL.

sudo ss -tulpn

Lists every listening port and which program owns it. Older guides use netstat and ifconfig; these come from the net-tools package, which is not installed by default on modern Ubuntu, so learn ss and ip instead.

ssh -p 22 [email protected]

Connects to a server. Replace the IP and username with yours. Full steps for PuTTY, PowerShell, Mac and Termux are in our SSH guide.

Package management commands (apt)

On Ubuntu and Debian, software is installed with apt. Most need sudo.

sudo apt update && sudo apt upgrade -y

The first thing to run on any new server. && runs the second command only if the first succeeds, and -y answers "yes" automatically.

sudo apt install htop tree unzip -y

Installs three useful tools at once.

Ubuntu's own command line for beginners tutorial (opens in new tab) is a good free companion to this list.

User management commands

sudo adduser deploy
sudo usermod -aG sudo deploy

Creates a new user and gives it admin (sudo) rights. On a fresh VPS you should do this and stop logging in as root. Our Ubuntu VPS initial server setup guide walks through it step by step.

Security warning: Always use -aG (append to group). Using -G alone replaces all of the user's groups and can lock them out of sudo.

Disk, memory and system info commands

df -h

Shows disk usage in GB. If / is above 90%, clean up before your server stops writing logs or databases.

sudo du -sh /var/* | sort -h

Finds which folder is eating space, sorted from small to large.

tar -czvf backup-$(date +%F).tar.gz /var/www/site

Creates a compressed, dated backup such as backup-2026-10-10.tar.gz.

tar -xzvf backup-2026-10-10.tar.gz

Extracts it again. Remember: create vs extract.

The detailed behaviour of core tools like ls, cp and df is documented in the GNU Coreutils manual (opens in new tab).

Linux commands cheat sheet table (PDF)

Here is the one-page summary of the most useful basic Linux commands. Bookmark this section or download the PDF.

Download the Linux commands PDF

Download the Linux commands for beginners PDF cheat sheet: a printable one-page version of the table above. Keep it next to your keyboard until the commands become muscle memory.

Basic Linux commands asked in interviews

If you are preparing for a fresher, support or DevOps interview, these questions come up again and again:

• Difference between rm and rmdir, and between kill and kill -9.
• What chmod 755 means.
• How to find which process uses port 80 (sudo ss -tulpn | grep :80).
• How to see the last 100 lines of a log (tail -n 100 file.log).
• How to check disk and RAM usage (df -h, free -h).
• Difference between apt update and apt upgrade.
• What a pipe | and redirection >/>> do (> overwrites, >> appends).

Dangerous commands beginners should avoid

Linux trusts you completely. A typo with sudo can destroy a server in seconds.

• sudo rm -rf / or rm -rf * in the wrong folder: deletes everything. Always run pwd before rm -rf.
• chmod -R 777: opens your files to anyone on the system.
• dd if=... of=/dev/sda: overwrites a whole disk if you pick the wrong device.
• Copy-pasting curl ... | sudo bash from random websites: runs unknown code as root. Read the script first.
• Editing /etc/ssh/sshd_config and restarting SSH without testing can lock you out of your VPS.

Before risky changes on a server, take a snapshot or backup. Our guide on how to secure a Linux VPS server covers firewall, SSH keys and safe defaults.

Six Linux command habits to keep from this guide

• Learn commands by task (files, permissions, processes, network, packages, disk), not alphabetically.
• Practise on Ubuntu via WSL on Windows, Terminal on Mac, Termux on Android, or a free/cheap VPS.
• Use man and --help whenever you forget a flag, and Tab to auto-complete.
• Prefer ip and ss over the older ifconfig and netstat on modern Ubuntu.
• Never use chmod 777 or run rm -rf without checking pwd first.
• Keep the PDF cheat sheet next to your keyboard and type the commands; reading alone does not make them stick.

Linux commands for beginners PDF: what to practise next

You do not need to memorise every Linux command. Learn the 60 or so in this guide by task, practise them daily on WSL, a Mac terminal, Termux or a VPS, and keep the linux commands for beginners pdf cheat sheet nearby until the commands feel natural. Once you are comfortable, put them to real use: set up your own server with our Ubuntu VPS initial server setup guide, or browse more server tutorials in our Web Hosting & Servers section.