diff --git a/home/bin/executable_nb b/home/bin/executable_nb
index 5fcfbce..8c05271 100644
--- a/home/bin/executable_nb
+++ b/home/bin/executable_nb
@@ -16,6 +16,7 @@ nb - Notebook management tool
 Usage: nb <command>
 
 Commands:
+  cd        Change directories
   save      Commit changes with timestamp
   sync      Save, fetch, and push changes
   log       Show commit log
@@ -26,6 +27,9 @@ EOF
 }
 
 case "$1" in
+    cd)
+        exec "$SHELL"
+        ;;
     save)
         jj diff -r @ --summary | grep -q . && jj commit -m "$(date +"%Y-%m-%dT%H:%M:%S%z")" && jj tug || true
         ;;