diff --git a/sh/alias/btrfs.sh b/sh/alias/btrfs.sh
index b70f8aa..43c5971 100644
--- a/sh/alias/btrfs.sh
+++ b/sh/alias/btrfs.sh
@@ -1,7 +1,7 @@
 # functions to handle btrfs volumes
 
 #= bfdf
-a__btrfs_filesystem_d_f() {
+rwx_btrfs_filesystem_d_f() {
 	btrfs \
 		filesystem \
 		df \
@@ -9,7 +9,7 @@ a__btrfs_filesystem_d_f() {
 }
 
 #= bfdu
-a__btrfs_filesystem_d_u() {
+rwx_btrfs_filesystem_d_u() {
 	btrfs \
 		filesystem \
 		du \
@@ -18,7 +18,7 @@ a__btrfs_filesystem_d_u() {
 }
 
 #= bfu
-a__btrfs_filesystem_usage() {
+rwx_btrfs_filesystem_usage() {
 	btrfs \
 		filesystem \
 		usage \
@@ -26,7 +26,7 @@ a__btrfs_filesystem_usage() {
 }
 
 #= bpg
-a__btrfs_property_get() {
+rwx_btrfs_property_get() {
 	btrfs \
 		property \
 		get \
@@ -34,7 +34,7 @@ a__btrfs_property_get() {
 }
 
 #= bsc
-a__btrfs_subvolume_create() {
+rwx_btrfs_subvolume_create() {
 	btrfs \
 		subvolume \
 		create \
@@ -42,7 +42,7 @@ a__btrfs_subvolume_create() {
 }
 
 #= bsd
-a__btrfs_subvolume_delete() {
+rwx_btrfs_subvolume_delete() {
 	btrfs \
 		subvolume \
 		delete \
@@ -50,7 +50,7 @@ a__btrfs_subvolume_delete() {
 }
 
 #= bsl
-a__btrfs_subvolume_list() {
+rwx_btrfs_subvolume_list() {
 	if [ -n "${1}" ]; then
 		btrfs subvolume list "${1}" |
 			cut --delimiter " " --fields 9 |
@@ -59,7 +59,7 @@ a__btrfs_subvolume_list() {
 }
 
 #= bss
-a__btrfs_subvolume_snapshot() {
+rwx_btrfs_subvolume_snapshot() {
 	btrfs \
 		subvolume \
 		snapshot \
@@ -67,7 +67,7 @@ a__btrfs_subvolume_snapshot() {
 }
 
 #= bssr
-a__btrfs_subvolume_snapshot_r() {
+rwx_btrfs_subvolume_snapshot_r() {
 	btrfs \
 		subvolume \
 		snapshot -r \