libexec/klab-fetch: print usage on missing arg

dapphub · Apr 15, 2020 · 98bb5ad · 98bb5ad
1 parent 156918a
commit 98bb5ad
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/libexec/klab-fetch b/libexec/klab-fetch
@@ -5,6 +5,7 @@ if [ -z "$KLAB_OUT" ]; then
   KLAB_OUT=out
 fi
 
+[[ $# -eq 1 ]] || (echo >&2 "Usage: klab fetch \$URL" && exit 1)
 url=$1
 filename=${url##*/}