Mac查看与修改系统默认shell 查看所有shell cat /etc/shells 输出: # List of acceptable shells for chpass(1). # Ftpd will not allow users to connect who are not using # one of these shells. /bin/bash /bin/csh /bin/dash /bin/ksh /bin/sh /bin/tcsh /bin/zsh 这表示目前系统下有7种版本的