Top 15 Advanced Linux Commands with examples + Cheat Sheet

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Linux is powerful, but mastering its advanced commands can feel overwhelming, especially if you’re working multiple AI projects, cybersecurity tasks, or managing servers.

That’s why I’ve created this simple guide that breaks down the most important advanced Linux commands in plain English, with examples you can try right now.

Whether you’re optimizing a cloud server, automating tasks with scripts, or fine-tuning system performance, these commands will give you the control and precision you need.

And to make life easier, I’ve included a FREE Advanced Linux Commands Cheat Sheet you can download in PDF, ePub, AZW3, MOBI, and DOCX formats, perfect for quick reference.

1. tar : Archive Files Efficiently

The tar command is used to archive multiple files or directories into a single compressed file.

tar -czvf backup.tar.gz /home/user/documents

Example Breakdown: This creates a compressed archive backup.tar.gz of the documents folder.
Tip: Use -x to extract archives: tar -xzvf backup.tar.gz

2. rsync : Fast File Synchronization

rsync is great for syncing directories locally or to remote servers.

rsync -avh /source/folder /destination/folder

Example Breakdown: Syncs /source/folder to /destination/folder, preserving permissions.

3. screen : Persistent Terminal Sessions

screen lets you keep terminal sessions running even after disconnection.

screen -S mysession

Tip: Detach with Ctrl+A, D and resume later with screen -r mysession.

4. tmux : Advanced Terminal Multiplexing

tmux is a modern alternative to screen for managing multiple terminal panes.

tmux new -s devsession

Example: Split windows, switch between panes, and persist your terminal sessions across SSH.

5. locate : Instantly Find Files

locate searches your file system database for files.

locate nginx.conf

Tip: Run sudo updatedb to refresh the locate database.

6. grep : Search Within Files

grep is essential for searching patterns within files.

grep 'error' /var/log/syslog

Example Breakdown: Finds all lines containing “error” in syslog.

7. find : Locate Files with Precision

find allows advanced search with multiple filters.

find /home -name "*.sh" -type f

Example: Finds all shell script files in /home.

8. df : Check Disk Space Usage

df displays disk space statistics.

df -h

Tip: Use -h for human-readable format.

9. du : Check Directory Size

du helps you see which directories are consuming space.

du -sh /var/log/

Example Breakdown: Shows the total size of /var/log in a human-friendly format.

10. top : Monitor System Processes

top provides a live view of processes and resource usage.

top

Tip: Press q to quit.

11. htop : Interactive Process Monitor

htop is a more user-friendly and colorful alternative to top.

htop

Note: You may need to install it: sudo apt install htop

12. netstat : View Network Connections

netstat shows active network connections.

netstat -tulnp

Example Breakdown: Lists all TCP/UDP ports and processes using them.

13. lsof : List Open Files

lsof lists all open files and their corresponding processes.

lsof -i :80

Example: Shows which process is using port 80.

14. ps aux : View All Running Processes

ps aux displays detailed information about all running processes.

ps aux | grep nginx

Example: Filters the process list for nginx.

15. journalctl : View System Logs (systemd)

journalctl is used to query logs managed by systemd.

journalctl -xe

Tip: Add -f to follow logs in real time.

Other Handy Advanced Linux Commands

Command Purpose
ncdu Disk usage analyzer (interactive)
watch Run a command repeatedly and watch its output
alias Create shortcuts for complex commands
xargs Build and execute command lines from input
uptime Show system uptime and load average
vmstat Report system performance statistics
dstat Versatile resource statistics viewer
uptime Shows system uptime


Did this guide help you? Share your favorite advanced Linux command tips or questions in the comments below or contact us.


Want more Linux guides? Check out our tutorials on Linux Security Commands Cheat Sheet, Linux Networking Commands, Wget Command Examples, Sudo Command Cheat Sheet and Top Linux Commands. Each post comes with a FREE cheat sheet.