MacOS TROUBLESHOOTING

1. REHAN 27.01.2026 / 14:57
MacOS TROUBLESHOOTING & REPAIR COMMANDS 🍎🛠️

Having issues with your Mac? These essential Terminal commands help you diagnose system problems, repair disks, fix network issues, check battery health, and resolve app crashes like a pro. Perfect for MacBook users, IT students, and technicians.

🧪 SYSTEM DIAGNOSTICS
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system_profiler SPSoftwareDataType
log show --predicate 'eventMessage contains "error"' --last 1h

🧹 DISK & FILE SYSTEM REPAIR
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diskutil verifyDisk disk0
diskutil repairDisk disk0
diskutil verifyVolume /
diskutil repairVolume /
🔹 (Use Recovery Mode ⌘ + R if disk is in use)

🧠 MEMORY & CPU TROUBLESHOOTING
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top
vm_stat
ps aux | sort -nrk 3 | head # High CPU usage

🌐 NETWORK TROUBLESHOOTING
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ping -c 5 google.com
networksetup -listallhardwareports
sudo dscacheutil -flushcache
sudo killall -HUP mDNSResponder

🔋 BATTERY HEALTH CHECK
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pmset -g batt
system_profiler SPPowerDataType

🔄 RESET SERVICES (Common Fixes)
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sudo killall Finder
sudo killall Dock
sudo killall SystemUIServer

🧯 SAFE MODE & RECOVERY
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nvram -p # Check NVRAM
csrutil status # SIP status (Recovery Mode)

🧰 APP CRASH INVESTIGATION
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ls ~/Library/Logs/DiagnosticReports
open ~/Library/Logs/DiagnosticReports

⚠️ Important Notes
Use sudo carefully
Backup before disk repairs
Some commands require Recovery Mode

Save this and keep it handy for quick macOS fixes! 💻✨

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#macOS #TerminalCommands
#MacTroubleshooting

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