Closed
Description
As a user, I have unified dotfiles that behave differently on different systems and I would like to detect when I'm inside an SSH connection/on a remote system.
We should consider setting the following standard SSH environment variables:
SSH_CLIENT=192.168.0.2 52122 22
SSH_CONNECTION=192.168.0.2 52122 192.168.0.1 22
SSH_TTY=/dev/pts/1
The SSH_TTY is not always /dev/pts/1, it varies depending on how many pseudo ttys have been allocated. It's also not set when running a command without tty (e.g. ssh coder.ws env).
SSH_CONNECTION Identifies the client and server ends of the
connection. The variable contains four space-
separated values: client IP address, client port
number, server IP address, and server port number.
[...]
SSH_TTY This is set to the name of the tty (path to the
device) associated with the current shell or
command. If the current session has no tty, this
variable is not set.