diff --git a/FastGithub/pack.sh b/FastGithub/pack.sh
index 5d0708e..c0a5e7a 100644
--- a/FastGithub/pack.sh
+++ b/FastGithub/pack.sh
@@ -1,4 +1,4 @@
-#! /bin/bash  # employ bash shell
+#! /bin/bash
 cd ./bin/publish
 
 # linux
diff --git a/FastGithub/publish.cmd b/FastGithub/publish.cmd
index 67a3c86..db27bd3 100644
--- a/FastGithub/publish.cmd
+++ b/FastGithub/publish.cmd
@@ -1,2 +1,4 @@
-dotnet publish -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true -r win-x64 -o ./bin/publish/win-x64
-dotnet publish -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true -r linux-x64 -o ./bin/publish/linux-x64
\ No newline at end of file
+set output=./bin/publish
+if exist "%output%" rd /S /Q "%output%"
+dotnet publish -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true -r win-x64 -o "%output%/win-x64"
+dotnet publish -c Release /p:PublishSingleFile=true /p:PublishTrimmed=true -r linux-x64 -o "%output%/linux-x64"
\ No newline at end of file