diff --git a/sh/log/log.sh b/sh/log/log.sh
index 3921b8a..eddf92c 100644
--- a/sh/log/log.sh
+++ b/sh/log/log.sh
@@ -17,31 +17,17 @@ RWX_LOG_LEVEL_TRACE=5
 # │ log │ variables │
 # ╰─────┴───────────╯
 
-rwx_log_level=${RWX_LOG_LEVEL_INFO}
+RWX_LOG_LEVEL=${RWX_LOG_LEVEL_INFO}
 
-# ╭─────┬───────────╮
-# │ log │ functions │
-# ╰─────┴───────────╯
+# ╭─────┬─────╮
+# │ log │ log │
+# ╰─────┴─────╯
 
-_rwx_log() {
-	local prefix="${1}"
-	shift
-	[ ${#} -gt 0 ] || set -- ""
-	local line
-	for line in "${@}"; do
-		[ -n "${prefix}" ] &&
-			printf "%s" "[${prefix}] "
-		echo "${line}"
-	done
-}
+rwx_log() { rwx_log_info "${@}"; }
 
-rwx_log_fatal() {
-	local code="${1}"
-	shift
-	[ -n "${code}" ] || rwx_log_fatal 1 "No error code"
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_FATAL}" ]; then
-		_rwx_log "FATAL" "${@}" >&2
-		exit "${code}"
+rwx_log_debug() {
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_DEBUG}" ]; then
+		_rwx_log "[DEBUG]" "${@}"
 	fi
 }
 
@@ -49,33 +35,60 @@ rwx_log_error() {
 	local code="${1}"
 	shift
 	[ -n "${code}" ] || rwx_log_fatal 1 "No error code"
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_ERROR}" ]; then
-		_rwx_log "ERROR" "${@}" >&2
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_ERROR}" ]; then
+		_rwx_log "[ERROR]" "${@}" >&2
 		return "${code}"
 	fi
 }
 
-rwx_log_warn() {
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_WARN}" ]; then
-		_rwx_log " WARN" "${@}"
+rwx_log_fatal() {
+	local code="${1}"
+	shift
+	[ -n "${code}" ] || rwx_log_fatal 1 "No error code"
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_FATAL}" ]; then
+		_rwx_log "[FATAL]" "${@}" >&2
+		exit "${code}"
 	fi
 }
 
-#= rwx_log
 rwx_log_info() {
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_INFO}" ]; then
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_INFO}" ]; then
 		_rwx_log "" "${@}"
 	fi
 }
 
-rwx_log_debug() {
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_DEBUG}" ]; then
-		_rwx_log "DEBUG" "${@}"
+rwx_log_trace() {
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_TRACE}" ]; then
+		_rwx_log "[TRACE]" "${@}"
 	fi
 }
 
-rwx_log_trace() {
-	if [ "${rwx_log_level}" -ge "${RWX_LOG_LEVEL_TRACE}" ]; then
-		_rwx_log "TRACE" "${@}"
+rwx_log_warn() {
+	if [ "${RWX_LOG_LEVEL}" -ge "${RWX_LOG_LEVEL_WARN}" ]; then
+		_rwx_log "[ WARN]" "${@}"
 	fi
 }
+
+# TODO simplify
+
+_rwx_main_log() {
+	[ ${#} -gt 0 ] || set -- ""
+	local line
+	for line in "${@}"; do
+		echo "${line}"
+	done
+}
+
+_rwx_log() {
+	local prefix="${1}"
+	shift
+	[ ${#} -gt 0 ] || set -- ""
+	local line
+	for line in "${@}"; do
+		if [ -n "${prefix}" ]; then
+			_rwx_main_log "${prefix} ${line}"
+		else
+			_rwx_main_log "${line}"
+		fi
+	done
+}
diff --git a/sh/main.sh b/sh/main.sh
index 2039ba5..d6cc20c 100755
--- a/sh/main.sh
+++ b/sh/main.sh
@@ -2,32 +2,33 @@
 # ╭──────╮
 # │ main │
 # ╰──────╯
+# main module
 
 # ╭──────┬───────────╮
 # │ main │ constants │
 # ╰──────┴───────────╯
 
-# project parent directory
+# parent directory for the project
 RWX_MAIN_PARENT="/usr/local/lib"
-# project name
+# name of the project itself
 RWX_MAIN_NAME="rwx"
-# project entrypoint module
+# name of the entrypoint module
 RWX_MAIN_MODULE="main"
-# shell modules extension
+# extension of shell modules
 RWX_MAIN_EXTENSION="sh"
 
 # ╭──────┬───────────╮
 # │ main │ variables │
 # ╰──────┴───────────╯
 
-# project main root directory
+# system root directory of the project
 rwx_main_root="${RWX_MAIN_PARENT}/${RWX_MAIN_NAME}"
 
 # ╭──────┬──────╮
 # │ main │ find │
 # ╰──────┴──────╯
 
-# find root directory shell modules
+# find directory’s shell files
 #| find
 #| sed
 #| sort
@@ -46,16 +47,13 @@ rwx_main_find() {
 # │ main │ main │
 # ╰──────┴──────╯
 
-# run required initial steps
+# run initial steps
 #< core/code
 rwx_main_main() {
-	local module
-	local modules
-	# find main modules
+	local module modules
+	# find & source modules
 	modules="$(rwx_main_find "${rwx_main_root}")"
-	# source main modules
 	while IFS= read -r module; do
-		# except currently running main module
 		if [ "${module}" != "${RWX_MAIN_MODULE}" ]; then
 			# shellcheck disable=SC1090
 			. "${rwx_main_root}/${module}.${RWX_MAIN_EXTENSION}"
@@ -63,7 +61,7 @@ rwx_main_main() {
 	done <<EOF
 ${modules}
 EOF
-	# run code module main function with found main modules
+	# run code main function
 	rwx_code_main "${modules}" "${@}"
 }