当我 ssh 到特定服务器时，如何让苹果终端窗口自动更改配色方案 [英] How do I make the apple terminal window auto change colour scheme when I ssh to a specific server

问题描述

当我通过 ssh 进入远程生产服务器时，我希望我的终端窗口的配色方案更改为明亮而可怕的颜色，最好是红色，以警告我我正在触摸一个实时的可怕服务器.

When I ssh into a remote production server I would like the colour scheme of my terminal window to change to something brigh and scary, preferably red, to warn me that I am touching a live scary server.

如何让它自动检测到我在某个地方 ssh 连接过，如果某个地方在特定列表中，请更改配色方案?

How can I make it automatically detect that I have ssh'ed somewhere, and if that somewhere is on a specific list, change the colour scheme?

我想更新Terminal.app的Scheme，不知道在纯linux/unix环境下怎么做

I want to update the Scheme of Terminal.app, not know how I would do this in a pure linux/unix env

推荐答案

将以下脚本放在 ~/bin/ssh 中(确保 ~/bin/ 在/usr/bin/ 在你的路径中):

Put following script in ~/bin/ssh (ensure ~/bin/ is checked before /usr/bin/ in your PATH):

#!/bin/sh

HOSTNAME=`echo $@ | sed s/.*@//`

set_bg () {
  osascript -e "tell application "Terminal" to set background color of window 1 to $1"
}

on_exit () {
  set_bg "{0, 0, 0, 50000}"
}
trap on_exit EXIT

case $HOSTNAME in
  production1|production2|production3) set_bg "{45000, 0, 0, 50000}" ;;
  *) set_bg "{0, 45000, 0, 50000}" ;;
esac

/usr/bin/ssh "$@"

记得通过运行 chmod +x ~/bin/ssh

上面的脚本从username@host"行中提取主机名(假设您使用ssh user@host"登录到远程主机).

The script above extracts host name from line "username@host" (it assumes you login to remote hosts with "ssh user@host").

然后根据主机名设置红色背景(用于生产服务器)或绿色背景(用于所有其他服务器).因此，您所有的 ssh 窗口都将带有彩色背景.

Then depending on host name it either sets red background (for production servers) or green background (for all other). As a result all your ssh windows will be with colored background.

我在这里假设您的默认背景是黑色，因此当您从远程服务器注销时，脚本会将背景颜色恢复为黑色(请参阅trap on_exit").

I assume here your default background is black, so script reverts the background color back to black when you logout from remote server (see "trap on_exit").

请注意，但是此脚本不会跟踪从一台主机到另一台主机的 ssh 登录链.因此，如果您先登录测试服务器，然后从它登录生产，背景将是绿色的.

Please, note however this script does not track chain of ssh logins from one host to another. As a result the background will be green in case you login to testing server first, then login to production from it.

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