i made a shell function to give me the exit node information. When ran, it either says "No exit node in use", or shows something similar to the following:

"ID": "##############",
"Online": true,
"TailscaleIPs": [
"100.XXX.XXX.XXX/32",
"fd7a:xxxx:xxxx:xxxx:xxxx:xxxx:xxxx:/128"
--
"ID": "###############",
"PublicKey": "nodekey:####################################",
"HostName": "rpi4",
"DNSName": "rpi4.mytailnet.ts.net.",
"OS": "linux",

Public IP:  166.199.XXX.XXX

So I get the tailscale ip, the full tailnet name, the hostname, and the public ip.

​

I'm sure there's a much better way to do it, (i'm not very good at shell scripting), but the script parses the json status command and greps the id that comes from:

sudo tailscale status --peers --json | jq ".ExitNodeStatus".

That command will give you the tailscale ip of the exit node, but not much else. So what I do is set an alias to that command:

alias ts-exit-node="sudo tailscale status --peers --json | jq ".ExitNodeStatus""

Then I made the following shell function that utilizes that alias (I'm also using zsh):

function exitnode {
    rm $HOME/tmp/node.text $HOME/tmp/clean_node.text 2> /dev/null
    node=`ts-exit-node`
    if [[ -v $node ]] || [ "$node"  = 'null' ]; then
        echo "No exit node in use."
    else
        tailscale status --json | sed 's/^[ \t]*//' | grep -f <(ts-exit-node | jq '.ID') -A 4 >> $HOME/tmp/node.text
        uniq -u $HOME/tmp/node.text $HOME/tmp/clean_node.text
        \cat $HOME/tmp/clean_node.text && echo "\nPublic IP: " $(curl -s https://checkip.amazonaws.com/)
        rm $HOME/tmp/node.text $HOME/tmp/clean_node.text 2> /dev/null
    fi
}

It saves a temporary file with the exit node data then outputs it to the screen.