SSH Background switcher

Switch background color of your terminal emulator when sshing into different server based on their hostnames.

This is a PHP port of https://github.com/fboender/sshbg with Fish shell support.

Supported Environments

• Bash or Fish shell
• Gnome Terminal

Installation

Requirements:

• PHP 8 (with pcntl extenstion)
• OpenSSH

First, clone this repository:

git clone https://github.com/php-backend/ssh-background-switcher.git
cd ssh-background-switcher

Then copy background-switcher.php to /usr/local/bin

sudo cp background-switcher.php /usr/local/bin/

Then open ~/.ssh/config and add this two line to the host entry that you want to switch background for.

        PermitLocalCommand yes
        LocalCommand background-switcher.php "%n" production

Full host entry should look like this:

Host {HOSTNAME}
        HostName {SERVER IP)
        User {USERNAME}
        PermitLocalCommand yes
        LocalCommand background-switcher.php "%n" {PROFILE_NAME}

Values wrapped with {} should be replaced with proper values.

PROFILE_NAME can be either production, demo, or test. You can add more profiles or edit existing one by creating a config.json file:

mkdir ~/.config/ssh-background-switcher
vim ~/.config/ssh-background-switcher/config.json

Now insert this content to the json file:

{
	 "default_background_color": "#ffffff",
	 "profiles": {
		"production": "#feffb0",
		"demo": "#f5f7c4",
		"test": "#ffe3e3",
		"default": "#feffb0"
	 },
	 "hostnames": {
		"example.com": "demo",
		"productionsite.com": "production"
	 }
}

Now you can change the colors as you wish.

Usage

Background Color will switch when you ssh into a specified host:

ssh example.com

Background color will reset back to default color when you terminate your ssh connection explicitly.