Support the --help flag

tpenguinltg · Jun 27, 2018 · 0e47849 · 0e47849
1 parent 28f6ed6
commit 0e47849
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/update.sh b/update.sh
@@ -21,6 +21,7 @@ OPTIONS
 EOF
 }
 
+[ -z "${*##*--help*}" ] && { print_usage >&3; exit 0; }
 while getopts r:h opt; do
   case $opt in
     r)