show error message if no program name is given

Kicksecure · Oct 31, 2020 · 1e1a493 · 1e1a493
1 parent eec9644
commit 1e1a493
Showing 1 changed file with 5 additions and 0 deletions.
diff --git a/usr/bin/sandbox-app-launcher b/usr/bin/sandbox-app-launcher
@@ -5,6 +5,11 @@
 
 set -e
 
+if [ $# -eq 0 ]; then
+    echo "Usage: program [OPTIONS]" >&2
+    exit 1
+fi
+
 app_name="${1}"
 shift 1
 : ${app_path:="$(type -P "${app_name}" || true)"}