/etc/shells

List of acceptable shells for chpass(1).

Ftpd will not allow users to connect who are not using

one of these shells.

/bin/sh # bourne shell
/bin/bash # bourne again shell
/bin/nologin #非登录shell
/bin/csh C shell
/bin/ksh kernel shell
/bin/tcsh tc shell
/bin/zsh

shell --version 显示shell的版本信息