http://threatpost.com/major-bash-vulnerability-affects-linux-unix-mac-os-x檢測：

$ env x='(){:;}; echo vulnerable' bash -c "echo this is a test"

中招的顯示:

vulnerablethis is a test

如果是沒有問題，則是下面

$ env x='(){:;}; echo vulnerable' bash -c "echo this is a test"bash: warning: x: ignoring function definition attemptbash: error importing function definition for `x'this is a test