Gan, Jimmy
97 lines
3.0 KiB
Bash
Executable File
97 lines
3.0 KiB
Bash
Executable File
#!/bin/bash
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# Free Disk Space for Time Machine
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# This script helps identify and free up space on your Mac so Time Machine can work
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set -e
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echo "=== Mac Disk Space Analysis ==="
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echo ""
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# Check current disk usage
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echo "📊 Current Disk Status:"
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df -h / | tail -1 | awk '{print " Total: " $2 " | Used: " $3 " (" $5 ") | Free: " $4}'
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echo ""
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# Check if disk is critically low
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FREE_SPACE=$(df / | tail -1 | awk '{print $4}')
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FREE_SPACE_GB=$(echo "scale=2; $FREE_SPACE / 1024 / 1024" | bc)
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if (( $(echo "$FREE_SPACE_GB < 5" | bc -l) )); then
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echo "⚠️ WARNING: Disk has less than 5GB free. Time Machine requires free space to work!"
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echo ""
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fi
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echo "🔍 Analyzing Large Files and Folders:"
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echo ""
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# Check Downloads folder
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if [ -d ~/Downloads ]; then
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DOWNLOADS_SIZE=$(du -sh ~/Downloads 2>/dev/null | awk '{print $1}')
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echo " 📁 Downloads: $DOWNLOADS_SIZE"
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fi
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# Check Library Caches
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if [ -d ~/Library/Caches ]; then
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CACHES_SIZE=$(du -sh ~/Library/Caches 2>/dev/null | awk '{print $1}')
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echo " 🗑️ Library/Caches: $CACHES_SIZE (safe to clean)"
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fi
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# Check Trash
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if [ -d ~/.Trash ]; then
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TRASH_SIZE=$(du -sh ~/.Trash 2>/dev/null | awk '{print $1}')
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echo " 🗑️ Trash: $TRASH_SIZE"
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fi
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# Check local Time Machine snapshots
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echo ""
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echo "📸 Local Time Machine Snapshots:"
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SNAPSHOTS=$(tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$" | wc -l | tr -d ' ')
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if [ "$SNAPSHOTS" -gt 0 ]; then
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echo " Found $SNAPSHOTS local snapshot(s)"
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tmutil listlocalsnapshots / 2>/dev/null | grep -v "Snapshots for disk" | grep -v "^$" | sed 's/^/ - /'
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echo ""
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echo " 💡 Tip: Local snapshots are automatically deleted when space is needed,"
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echo " but you can delete them manually if needed."
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else
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echo " No local snapshots found"
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fi
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echo ""
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echo "📋 Top 10 Largest Files/Directories in Home:"
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du -h -d 1 ~ 2>/dev/null | sort -hr | head -10 | awk '{printf " %8s %s\n", $1, $2}'
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echo ""
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echo "=== Recommendations ==="
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echo ""
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echo "1. 🗑️ Empty Trash:"
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echo " rm -rf ~/.Trash/*"
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echo ""
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echo "2. 🧹 Clean System Caches (safe):"
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echo " rm -rf ~/Library/Caches/*"
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echo ""
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echo "3. 📁 Review Downloads folder (~/Downloads) - 19GB found"
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echo " Move large files to NAS or delete if not needed"
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echo ""
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echo "4. 🗑️ Delete old local snapshots (if needed):"
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echo " sudo tmutil deletelocalsnapshots <snapshot-date>"
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echo ""
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echo "5. 💾 Use Storage Management:"
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echo " Apple Menu → About This Mac → Storage → Manage"
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echo " This tool can help identify and remove large files, old backups, etc."
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echo ""
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echo "6. 📦 Check for large applications:"
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echo " Review Applications folder for unused apps"
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echo ""
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echo "=== Quick Clean Commands ==="
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echo ""
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echo "To clean caches (safe, will regenerate):"
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echo " rm -rf ~/Library/Caches/*"
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echo ""
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echo "To empty trash:"
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echo " rm -rf ~/.Trash/*"
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echo ""
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echo "To see what's taking up space:"
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echo " du -h -d 1 ~ | sort -hr | head -20"
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echo ""
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