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       #Post#: 43--------------------------------------------------
       🧠 Arch Like a Boss – Lesson 1: journalctl Demystified
   DIR By: helwanlinux
       Date: July 5, 2025, 9:14 am
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       🧠 Arch Like a Boss – Lesson 1: journalctl Demystified
       journalctl is your best friend when something goes wrong in your
       system.
       It reads logs from systemd and shows you what’s been happening
       behind the scenes.
       🔧 Basic Usage:
       journalctl
       This will dump the entire log history — probably too much.
       🔍 Filter by Time:
       journalctl --since today
       journalctl --since "2025-07-01" --until "2025-07-05"
       ⚙️ View Only Boot Logs:
       journalctl -b
       To see previous boots:
       journalctl --list-boots
       journalctl -b -1     # one boot ago
       💥 View Errors Only:
       journalctl -p err
       journalctl -p 3
       📦 Logs from Specific Service:
       journalctl -u NetworkManager
       journalctl -u sshd.service
       🧠 Pro Tip: Add -f to follow logs in real-time, like tail
       -f:
       journalctl -f
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