setup-etc-hosts

#!/bin/bash

echo "================================================================================"
echo "This script will add the following entry to /etc/hosts if it does not"
echo "already exist:"
echo ""
echo -e "127.0.0.1\thttp://php-file-listing.local"
echo ""
echo "This script must be run as root to execute properly. Please run it like this:"
echo "$ sudo ./setup-etc-hosts"
echo "================================================================================"
echo ""

# check to see if the script has been run as root, exit if not
if [ "$EUID" -ne 0 ]
    then echo "[ERROR] This script needs to be run as root. Run this script with sudo."
    exit
fi

# check to see if the entry in /etc/hosts already exists
if grep -q "php-file-listing.local" /etc/hosts; then
    echo "An entry for php-file-listing.local already exists in /etc/hosts."
    exit
else
    # add the entry to /etc/hosts
    echo -e "Adding '127.0.0.1\tphp-file-listing.local' to /etc/hosts..."
    echo -e "127.0.0.1\tphp-file-listing.local" >> /etc/hosts
    
    # check to see if it was successful and return a message
    if grep -q "php-file-listing.local" /etc/hosts; then
        echo "Entry successfully added to /etc/hosts."
    else
        echo "[ERROR] Entry failed to be added to /etc/hosts."
    fi
fi