Useful Linux Commands Every System Administrator Should Know

Linux system administration becomes much easier when you know the right commands for monitoring, troubleshooting, and managing servers efficiently.

In this article, I’ll share some useful Linux commands that I regularly use while managing production servers and cloud infrastructure environments.

1. Check System Uptime

uptime

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Displays:

server uptime

current load average

active users

Useful for quick server health checks.

2. Monitor Running Processes

htop

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or

top

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Helps identify:

high CPU usage

memory consumption

overloaded processes

3. Check Disk Usage

df -h

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Displays disk space usage in human-readable format.

4. Analyze Directory Sizes

du -sh *

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Very useful when troubleshooting storage problems.

5.…