How To Crack A Linux Interview: Top Questions And Commands

Interviews can be tough, but Linux shouldn’t be! This guide covers the most asked Linux interview questions for DevOps, SysAdmin, and Cloud roles. From basic commands to advanced troubleshooting, here’s everything you need to prepare.

Basic Linux Commands:

1. List Files:

ls -l

2. Check Disk Usage:

df -h

3. Search for a File:

find / -name "filename"

4. Check Running Processes:

ps aux

Advanced Linux Commands:

1. Check Network Connections:

netstat -tuln

2. Monitor System Performance:

top

3. Create a Cron Job:

crontab -e

4. Check Logs in Real-Time:

tail -f /var/log/syslog

Shell Scripting Example:

#!/bin/bash

<h1>Backup script</h1>

tar -czf /backup/$(date +%F).tar.gz /home/user

What Undercode Say:

Cracking a Linux interview requires a solid understanding of both basic and advanced commands. Start by mastering file management commands like ls, cp, and mv. System monitoring commands such as `top` and `htop` are crucial for troubleshooting. Networking commands like `netstat` and `ping` are often asked in interviews. Shell scripting is another key area; practice creating scripts for automation tasks like backups or log monitoring. For DevOps roles, focus on commands related to containerization (docker, kubectl) and configuration management (ansible, terraform). Always be ready to explain your thought process while solving real-world problems. Remember, hands-on practice is the key to success. Use virtual machines or cloud platforms to simulate environments and test your skills. Good luck!

Additional Resources:

References:

Hackers Feeds, Undercode AI

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