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As a Cloud Engineer, mastering Linux is essential for managing infrastructure, automating tasks, and troubleshooting efficiently. From file management to networking, process monitoring, and security, these commands will boost your productivity in cloud environments like AWS, GCP, Azure, Kubernetes, and Docker.
You Should Know:
File & Directory Management
1. `ls` – List files and directories
ls -la # List all files including hidden ones with details
2. `pwd` – Print working directory
pwd # Show current directory path
3. `cd` – Change directory
cd /var/log # Navigate to the log directory
4. `mkdir` – Create directories
mkdir -p /home/user/new_folder # Create nested directories
5. `rm` – Remove files or directories
rm -rf /home/user/old_folder # Forcefully remove a directory
Process & Performance Monitoring
1. `ps` – View running processes
ps aux # Display all running processes
2. `top` – Monitor system performance
top # Real-time system monitoring
3. `kill` – Terminate processes
kill -9 1234 # Forcefully kill a process with PID 1234
Networking & Remote Access
1. `ssh` – Secure remote login
ssh [email protected] # Connect to a remote server
2. `wget` – Download files from the web
wget https://example.com/file.zip # Download a file
3. `curl` – Transfer data from URLs
curl -O https://example.com/file.zip # Download and save a file
System Administration
1. `sudo` – Execute commands as superuser
sudo apt update # Update package list with superuser privileges
2. `df -h` – Check disk space usage
df -h # Display disk usage in human-readable format
3. `du -sh` – Analyze folder size
du -sh /var/log # Check the size of the log directory
Security & Permissions
1. `chmod` – Change file permissions
chmod 755 script.sh # Set read, write, and execute permissions
2. `chown` – Change file ownership
chown user:group file.txt # Change ownership of a file
What Undercode Say:
Linux commands are the backbone of cloud engineering, enabling efficient infrastructure management and automation. Whether you’re working with AWS, GCP, or Azure, mastering these commands will significantly enhance your productivity. Practice these commands in a safe environment to build confidence and explore advanced use cases. For further learning, check out resources like Linux Command Line Basics and Advanced Linux Commands.
Keep exploring, and remember: “In Linux, the command line is your superpower!” 🚀
References:
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