add zipCmd demo to compress given files

zipCmd.py

+import os
+import time
+
+# Windows
+source_dir = ['C:\\Users\\bduan\\Documents\\testZipSrc']
+# zip_exe = r'D:\Program Files (x86)\GnuWin32\bin\zip.exe'
+zip_exe = r'D:\Programs\GnuWin32\bin\zip.exe'
+target_dir = 'C:\\Users\\bduan\\Documents\\testZipTgt'
+
+if not os.path.exists(target_dir):
+	os.mkdir(target_dir)
+
+target = f"{target_dir}{os.sep}{time.strftime('%Y%m%d%H%M%S')}.zip"
+zip_command = f"{zip_exe} -r {target} {''.join(source_dir)}"
+# zip_command = zip_exe + "-r" + target + ''.join(source_dir)
+print(f'Zip command is {zip_command}')
+print('Running')
+if os.system(zip_command) == 0:
+	print(f'Successful backup to {target}')
+else:
+	print("backup FAILED")
+