Ngrok install script

ngrok-install.sh

#!/bin/bash

pushd /tmp
    echo "Downloading ngrok"
    rm -f /tmp/ngrok.zip
    curl --silent https://bin.equinox.io/c/4VmDzA7iaHb/ngrok-stable-linux-amd64.zip -o /tmp/ngrok.zip
    echo "Downloaded"
    unzip /tmp/ngrok.zip
    if echo "$PATH" | grep /usr/local/bin; then 
        echo -e "\n Enter pwd if prompted"
        sudo mv ngrok /usr/local/bin
        echo 'Done!'
    else
        echo "Enter pwd if prompted"
        sudo mv ngrok /usr/bin
        echo 'Done!'
    fi