Add subcmd resetfirstrun

sdata/subcmd-resetfirstrun/0.run.sh

@@ -0,0 +1,6 @@
+# This script is meant to be sourced.
+# It's not for directly running.
+
+# shellcheck shell=bash
+
+try rm "${FIRSTRUN_FILE}"

sdata/subcmd-resetfirstrun/options.sh

@@ -0,0 +1,27 @@
+# Handle args for subcmd: checkdeps
+# shellcheck shell=bash
+
+showhelp(){
+echo -e "Syntax: $0 resetfirstrun [OPTIONS]
+
+Reset firstrun state.
+
+Options:
+  -h, --help       Show this help message and exit
+"
+}
+# `man getopt` to see more
+para=$(getopt \
+  -o c \
+  -l help \
+  -n "$0" -- "$@")
+[ $? != 0 ] && echo "$0: Error when getopt, please recheck parameters." && exit 1
+#####################################################################################
+eval set -- "$para"
+while true ; do
+  case "$1" in
+    -h|--help) showhelp;exit;;
+    --) shift;break ;;
+    *) sleep 0 ;;
+  esac
+done