diff --git a/install.sh b/install.sh
index 6e7a499..b55b132 100755
--- a/install.sh
+++ b/install.sh
@@ -292,6 +292,7 @@ uninstall()
     fmt_note "done uninstalling!"
 }
 
+echo "this is the dotfiles installer, version $(cd "$DOTFILES" && git describe --tags --always --dirty)"
 FUNC=install
 INSTALL_DEP=0
 store_config=0
diff --git a/tools/get.dotfiles.cn b/tools/get.dotfiles.cn
index 84a19a0..ac2166b 100644
--- a/tools/get.dotfiles.cn
+++ b/tools/get.dotfiles.cn
@@ -45,6 +45,7 @@ for u in "${DFS_USERS[@]}";do
     echo "install for user $u in 3 seconds ..."
     sleep 3
     $SUCMD<<EOF
+set -e
 cd
 if [[ ! -f ~/dotfiles/install.sh ]];then
     git clone ${repo}