今天升級了macOS Catalina
1：在使用命令臺時出現了：
The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s?/bin/zsh`.
For?more?details, please visit https://support.apple.com/kb/HT208050.
2：原我使用的是bash風格牢屋，提示語告知現在新系統(tǒng)的shell已經更換為zsh涡拘，請用此 `chsh -s /bin/zsh` 命令切換驶赏。
3：查看系統(tǒng)支持的shell風格命令：
1cat?/etc/shells
4：我系統(tǒng)支持的shell：
The default interactive shell is now zsh.
To update your account to use zsh, please run `chsh -s?/bin/zsh`.
For?more?details, please visit https://support.apple.com/kb/HT208050.
Macintosh:~ zhengya$??cat?/etc/shells
# List of acceptable shells for chpass(1).
# Ftpd will not allow users to connect who are not using
# one of these shells.
/bin/bash
/bin/csh
/bin/dash
/bin/ksh
/bin/sh
/bin/tcsh
/bin/zsh
Macintosh:~ zhengya$?
5：解決辦法
(1) 不使用bash痰驱，切換zsh，`chsh -s /bin/zsh`命令切換即可晕翠。
(2) 繼續(xù)使用bash喷舀，但又不想出現提示語砍濒，則在
1vim ~/.bash_profile
.bash_profile文件最下方加上
# macOS Catalina
export?BASH_SILENCE_DEPRECATION_WARNING=1
:wq 保存退出重新打開命令行警示語消失。
