From 9c33fa21fce5311f27e4c6d6c806121f2a15e433 Mon Sep 17 00:00:00 2001
From: Ben Cumming <bcumming@cscs.ch>
Date: Fri, 16 Feb 2024 09:23:40 +0100
Subject: [PATCH] print proper help message if no args passed

---
 uenv-image => img | 3 +++
 1 file changed, 3 insertions(+)
 rename uenv-image => img (99%)

diff --git a/uenv-image b/img
similarity index 99%
rename from uenv-image
rename to img
index 771db3d..f2e3d9c 100755
--- a/uenv-image
+++ b/img
@@ -412,6 +412,9 @@ def uenv_record_path(record):
 if __name__ == "__main__":
     parser = make_argparser()
     args = parser.parse_args()
+    if args.command is None:
+        parser.print_help()
+        sys.exit()
 
     global colored_output
     colored_output = use_colored_output(args.no_color)