Create new script to run this python script from anywhere, and a setup script to add it to path.

setup.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+# Create executable backup script
+chmod +x backup.py
+chmod +x backup
+
+# Create a symlink in /usr/local/bin to make it accessible from anywhere
+if [ -w /usr/local/bin ]; then
+    # If we have write permission to /usr/local/bin
+    ln -sf "$(realpath backup)" /usr/local/bin/backup
+    echo "Created symlink in /usr/local/bin/backup"
+else
+    # If we don't have permission, suggest using sudo
+    echo "To install system-wide, run:"
+    echo "sudo ln -sf $(realpath backup) /usr/local/bin/backup"
+    
+    # Offer to add to user's path as an alternative
+    read -p "Would you like to add it to your PATH in ~/.bashrc instead? (y/n) " choice
+    if [[ $choice == "y" || $choice == "Y" ]]; then
+        SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
+        echo "export PATH=\"\$PATH:$SCRIPT_DIR\"" >> ~/.bashrc
+        echo "Added to PATH in ~/.bashrc"
+        echo "Run 'source ~/.bashrc' to apply changes"
+    fi
+fi
+
+echo "Setup complete. You can now run 'backup' from anywhere."