#!/bin/sh

publish() {
    echo "I'm a publish function"
}
foobar() {
    echo "I'm a foobar function"
}
usage() {
    echo "Sorry, I can only undestand the following commands:"
    echo " - publish       publishes something to somehere"
    echo " - foobar        makes you feel warm and fuzzy"
    exit 2
}

case "$SSH_ORIGINAL_COMMAND" in
    "publish") publish; ;;
    "foobar") foobar; ;;
    *) usage; ;;
esac