diff --git a/experiments/MacOS/backup-kicad.command b/experiments/MacOS/backup-kicad.command
new file mode 100644
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--- /dev/null
+++ b/experiments/MacOS/backup-kicad.command
@@ -0,0 +1,43 @@
+#!/bin/bash
+
+#It looks complicated, but it copies files from the default locations for the KiCad applications, support files, and preferences into your home directory, in a directory that starts with kicad-backup and then the date and time.
+
+BACKUP_DIR=~/kicad-backup-$(date +%Y%m%d-%H%M%S)
+mkdir -p $BACKUP_DIR
+if [ -e /Applications/KiCad ]; then
+  echo "Backing up /Applications/KiCad"
+  mkdir -p $BACKUP_DIR/Applications
+  cp -r /Applications/KiCad $BACKUP_DIR/Applications/
+fi
+
+if [ -e /Applications/Kicad ]; then
+  echo "Backing up /Applications/Kicad"
+  mkdir -p $BACKUP_DIR/Applications
+  cp -r /Applications/Kicad $BACKUP_DIR/Applications/
+fi
+
+if [ -e "/Library/Application Support/kicad" ]; then
+  echo "Backing up /Library/Application Support/kicad"
+  mkdir -p "$BACKUP_DIR/Library/Application Support"
+  cp -r "/Library/Application Support/kicad" "$BACKUP_DIR/Library/Application Support/"
+fi
+
+if [ -e "$HOME/Library/Application Support/kicad" ]; then
+  echo "Backing up $HOME/Library/Application Support/kicad"
+  mkdir -p "$BACKUP_DIR/$HOME/Library/Application Support"
+  cp -r "$HOME/Library/Application Support/kicad" "$BACKUP_DIR/$HOME/Library/Application Support/"
+fi
+
+if [ -e "$HOME/Library/Preferences/org.kicad-pcb.*" ]; then
+  echo "Backing up $HOME/Library/Preferences/org.kicad-pcb.*"
+  mkdir -p "$BACKUP_DIR/$HOME/Library/Preferences"
+  cp -r "$HOME/Library/Preferences/org.kicad-pcb.*" "$BACKUP_DIR/$HOME/Library/Preferences/"
+fi
+
+if [ -e "$HOME/Library/Preferences/kicad" ]; then
+  echo "Backing up $HOME/Library/Preferences/kicad"
+  mkdir -p "$BACKUP_DIR/$HOME/Library/Preferences"
+  cp -r "$HOME/Library/Preferences/kicad" "$BACKUP_DIR/$HOME/Library/Preferences/"
+fi
+
+echo "Backup into $BACKUP_DIR complete."