my_config/add_zshrc

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

if [[ (-e ~/.zshrc || -e ~/.zshrc.d) ]]; then
    echo "A zsh configuration already exists (~/.zshrc or ~/.zshrc.d)"
    echo "Remove this configuration and start the script again"
else
    echo "Creating base links"
    ln -vs $SCRIPTPATH/.zshrc ~/.zshrc
    ln -vs $SCRIPTPATH/.zshrc.d ~/.zshrc.d
fi