Tip Category 15 tips command-line

Command Line

15 Total Tips

7 Beginner

7 Intermediate

1 Advanced

Monitor Linux Disk Usage Real-Time | watch du Command Guide

Beginner

How to Monitor Linux Disk Usage in Real-Time? Quick Answer: Use: to monitor directory sizes every second. Combine with df -h to check filesystem usage:...

Bash

watch -n 1 'du -sh /path/to/directory | sort -h'

July 18, 2025 luc 17 min read

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Linux useradd Command: Guide to Professional User Creation

Beginner

How to Use Linux useradd Command for User Creation? Quick Answer: Use sudo useradd -m -s /bin/bash username to create a user with home directory...

Bash

sudo useradd -m -s /bin/bash -G sudo,docker,www-data -c "Development User"...

July 15, 2025 luc 31 min read

System Admin

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Linux cat Command: Beyond Basic File Viewing

Beginner

How to Use Linux cat Command for File Viewing and Analysis? Quick Answer: Use cat filename.txt to display file contents, cat -n filename.txt to show...

Bash

cat -n /var/log/nginx/error.log | grep -E "(404|500|503|502)"

July 13, 2025 luc 25 min read

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Monitor Linux Disk Usage Real-Time | watch du Command Guide

Linux useradd Command: Guide to Professional User Creation

Linux cat Command: Beyond Basic File Viewing

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