Capture who run the script

group_manager.py

 #!/usr/bin/env python3
 import argparse
 import grp
+import os
 import pwd
 import sys
 
@@ -34,6 +35,8 @@ if __name__ == "__main__":
     )
     args = parser.parse_args()
 
+    executed_by = os.getenv("USER")
+
     exist_users = []
     miss = False