diff --git a/sh/main.sh b/sh/main.sh
index f591b46..c916049 100644
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -51,6 +51,25 @@ _rwx_main_log() {
 # │ public │
 # ╰────────╯
 
+# get functions from file
+rwx_grep_functions() {
+	local file="${1}"
+	grep "()" "${file}" |
+		cut --delimiter "(" --fields 1
+}
+
+# test if active shell is in interactive mode
+rwx_shell_interactive() {
+	case "${-}" in
+	*i*) ;;
+	*) return 1 ;;
+	esac
+}
+
+# ╭──────╮
+# │ core │
+# ╰──────╯
+
 # find directory’s files by extension
 rwx_find_extension() {
 	local extension="${1}"
@@ -70,31 +89,16 @@ rwx_find_extension() {
 }
 
 # find directory’s sh files
-rwx_find_sh() {
+rwx_find_shell() {
 	rwx_find_extension "sh" "${@}"
 }
 
-# get functions from file
-rwx_grep_functions() {
-	local file="${1}"
-	grep "()" "${file}" |
-		cut --delimiter "(" --fields 1
-}
-
-# test if active shell is in interactive mode
-rwx_shell_interactive() {
-	case "${-}" in
-	*i*) ;;
-	*) return 1 ;;
-	esac
-}
-
 rwx_main_source() {
 	local path="${1}"
 	[ -d "${path}" ] ||
 		return 1
 	local cmd count module modules
-	modules="$(rwx_find_sh "${path}" "${RWX_MAIN_NAME}")"
+	modules="$(rwx_find_shell "${path}" "${RWX_MAIN_NAME}")"
 	rwx_ifs_set
 	count=0
 	_rwx_main_log "" \