run: use getopt

getvar

@@ -1,16 +1,17 @@
 #!/usr/bin/env bash
 . "$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)/common"
-while getopts "h${common_getopts_flags}" OPT; do
-  case "$OPT" in
-    h)
+parsed=$(getopt -o "h${common_getopt_flags}" -l "$common_getopt_flags_long" -- "$@")
+eval set -- "$parsed"
+while true; do
+  case "$1" in
+    -h)
       echo "https://github.com/cirosantilli/linux-kernel-module-cheat#getvar" 2>&1
       exit
       ;;
-    ?)
-      common_getopts_case "$OPT"
+    *)
+      common_getopt_case "$@"
       ;;
   esac
 done
-shift "$(($OPTIND - 1))"
 common_setup
 eval "echo \$common_${1}"