env t='() { :;}; echo You are vulnerable.' bash -c "true"' }. p! Y- N# s: l1 w
bash: warning: t: ignoring function definition attempt. x' k6 z. n) F& p* C o
bash: error importing function definition for `t' . F H4 h4 l, Y. o0 i% x. u4 c' b: m/ T! `7 O
这样OK了?