go api bash script set up

setup.sh

#!/bin/bash
cd ${HOME}
if [[ $unamestr == "Darwin" ]]; then
    echo "installing... homebrew..."
    if ! which brew > /dev/null; then
        ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
    fi
    echo "installing... git... go..."
    brew install git go
fi
if [[ $unamestr == "Linux" ]]; then
    echo "Please install Go. https://golang.org/doc/install\n"
    echo "installing... git..."
    if which apt-get > /dev/null; then
        sudo apt-get install git
    fi
    if which yum > /dev/null; then
        sudo yum install git
    fi
fi
if ! which go > /dev/null; then
    echo "install go... https://golang.org/doc/install"
    exit;
fi

cd ${HOME}

if [ ! -d "./GoProjects" ]; then
    mkdir GoProjects
fi

go get github.com/mattn/gom
export GOPATH=${PWD}
export PATH=${GOPATH}/bin:${PATH}
echo "add this to your terminal environment: "
echo "export GOPATH=${PWD}"
echo "export PATH=$GOPATH/bin:$PATH"
echo "installing go package gom!"

if ! which go > /dev/null; then
    echo "go not installed... shit"
    exit;
fi

if ! which gom > /dev/null; then
    echo "please add this export to profile:"
    echo "export $GOPATH/bin"
    export ${GOPATH}/bin
fi

if ! which git > /dev/null; then
    echo "Shit, no git."
    echo "Install it."
fi


while true; do
    echo "Create new api skeleton? (C)"
    echo "Download exiting? (D)"
    echo "Exit? (E)"
    read -p ">>>>>>>>>" cde
    case $cde in
        [Cc]* )
            read -p "name project: " projectName
            git clone git@github.com:MR0B0T/go-api-skeleton.git $projectName
            cd $projectName
            gom install
        break;;
        [Dd]* )
            read -p "git repo: " repo
            read -p "name project: " proj
            git clone $repo $proj
            cd $proj
            gom install
        break;;
        [Ee]* )
        break;;
        * ) echo "Please answer correctly";;
    esac
done

echo "done"