my_config/add_ssh_config

#!/bin/zsh
#
SCRIPTPATH="$( cd -- "$(dirname "$0")" >/dev/null 2>&1 ; pwd -P )"

if [[ (-e ~/.ssh/config) ]]; then
    echo "A ssh configuration already exists (~/.ssh/config)"
    echo "Remove this configuration and start the script again"
else
    echo "Creating link"
    ln -vs $SCRIPTPATH/.ssh/config ~/.ssh/config
fi