diff --git a/.zshrc2 b/.zshrc2
index c7262d6..c7e852d 100644
--- a/.zshrc2
+++ b/.zshrc2
@@ -80,7 +80,7 @@ get_os_type() {
     case "$(uname -s)" in
         Darwin*)    ans="MacOS";;
         CYGWIN*)    ans="Cygwin";;
-        MINGW* )    ans="MinGw";;
+        MSYS*  )    ans="MSYS";;
         Linux* )    ans="Linux";;
         *)          ans="unknown";;
     esac
diff --git a/tools/alpine.sh b/tools/alpine.sh
index 031b9bb..960abfb 100755
--- a/tools/alpine.sh
+++ b/tools/alpine.sh
@@ -18,12 +18,8 @@ apk_add()
     apk update
 
     # mass installation
-    apk add zsh git tmux vim curl wget bash python3 htop gcc g++ cmake make fzf perl linux-headers bind-tools iputils man-db
+    apk add zsh git tmux vim curl wget bash python3 htop gcc g++ cmake make fzf perl linux-headers bind-tools iputils man-db coreutils
     #for i in {fzf,ripgrep}; do apk add $i -y; done
-
-    # who am i
-    git config --global user.email "me@beardic.cn"
-    git config --global user.name "Dict Xiong"
 }
 
 set_timezone()