If the operating system on which Bash is running supports job control, Bash contains facilities to use it. Typing the suspend character (typically ‘^Z’, Control-Z) while a process is running stops that process and returns control to Bash.

别用shell就行了
【 在 freyoneby 的大作中提到: 】
:  打vim之后总按到这个被切出去
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FROM 139.227.18.*