diff --git a/sh/alias/rsync.sh b/sh/alias/rsync.sh
index 7a94aac..02ea400 100644
--- a/sh/alias/rsync.sh
+++ b/sh/alias/rsync.sh
@@ -1,11 +1,6 @@
 # synchronize
-rs() {
-	rsb \
-		"${@}"
-}
-
-# base arguments
-rsb() {
+rs() { sh_a__r_sync "${@}"; }
+sh_a__r_sync() {
 	rsync \
 		--archive \
 		--no-inc-recursive \
@@ -16,16 +11,17 @@ rsb() {
 }
 
 # synchronize and delete after
-rsda() {
-	rsb \
+rsda() { sh_a__r_sync_delete_after "${@}"; }
+sh_a__r_sync_delete_after() {
+	sh_a__r_sync \
 		--delete-after \
 		"${@}"
 }
 
 # synchronize and delete before
-rsdb() { r_sync_delete_before "${@}"; }
-r_sync_delete_before() {
-	rsb \
+rsdb() { sh_a__r_sync_delete_before "${@}"; }
+sh_a__r_sync_delete_before() {
+	sh_a__r_sync \
 		--delete-before \
 		"${@}"
 }