diff --git a/README.md b/README.md
index 37f9984..e7a8675 100644
--- a/README.md
+++ b/README.md
@@ -73,7 +73,7 @@ Zsh:
 | Command | Alias | Arguments |
 | --- | --- | --- |
 | `ros2 run tf2_tools view_frames` | `view_frames` | namespace of TF topic [Optional] |
-| `ros2 run tf2_ros tf2_echo` | `tf2_echo`| frame 1 [Required], frame 2 [Required], namespace of TF topic [Optional] |
+| `ros2 run tf2_ros tf2_echo` | `tf_echo`| frame 1 [Required], frame 2 [Required], namespace of TF topic [Optional] |
 
 ## Colcon
 
@@ -81,6 +81,7 @@ Zsh:
 | --- | --- | --- |
 | `colcon build --symlink-install` | `cb` |
 | `colcon build --symlink-install --packages-select` | `cbp`| package 1 [Optional] ... package n [Optional] |
+| `colcon build --symlink-install --packages-skip` | `cbs`| package 1 [Optional] ... package n [Optional] |
 | `colcon list` | `cl` |
 
 ## Rosdep
diff --git a/ros2_utils.bash b/ros2_utils.bash
index 63ca369..79c995a 100644
--- a/ros2_utils.bash
+++ b/ros2_utils.bash
@@ -227,6 +227,20 @@ function cbp {
     history -s $CMD
 }
 
+function cbs {
+    if [ $# -eq 0 ]; then
+        PACKAGE=$(colcon list -n | fzf)
+        [[ -z "$PACKAGE" ]] && return
+        local CMD="colcon build --symlink-install --packages-skip $PACKAGE"
+    else
+        local CMD="colcon build --symlink-install --packages-skip $@"
+    fi
+    echo $CMD
+    $CMD
+    history -s cbs $@
+    history -s $CMD
+}
+
 function cl {
     CMD="colcon list -n"
     echo $CMD
diff --git a/ros2_utils.zsh b/ros2_utils.zsh
index 46ffc05..6941b8e 100644
--- a/ros2_utils.zsh
+++ b/ros2_utils.zsh
@@ -226,6 +226,20 @@ function cbp {
     print -s $CMD
 }
 
+function cbs {
+    if [ $# -eq 0 ]; then
+        PACKAGE=$(colcon list -n | fzf)
+        [[ -z "$PACKAGE" ]] && return
+        CMD="colcon build --symlink-install --packages-skip $PACKAGE"
+    else
+        CMD="colcon build --symlink-install --packages-skip $@"
+    fi
+    echo $CMD
+    eval $CMD
+    print -s cbs $@
+    print -s $CMD
+}
+
 function cl {
     CMD=(colcon list -n)
     echo $CMD