Added arch as a supported OS

install.sh

@@ -60,6 +60,7 @@ fi
 PREREQ="curl wget unzip tar"
 PREREQDEB="dnsutils"
 PREREQRPM="bind-utils"
+PREREQARCH="bind"
 
 echo "Installing prerequisites"
 if [ "${ID}" = "debian" ] || [ "$OS" = "Ubuntu" ] || [ "$OS" = "Debian" ]  || [ "${UPSTREAM_ID}" = "ubuntu" ] || [ "${UPSTREAM_ID}" = "debian" ]; then
@@ -71,6 +72,9 @@ elif [ "$OS" = "CentOS" ] || [ "$OS" = "RedHat" ]   || [ "${UPSTREAM_ID}" = "rhe
 # || [ "${UPSTREAM_ID}" = "suse" ]
     sudo yum update -y
     sudo yum install -y  ${PREREQ} ${PREREQRPM} # git
+elif [ "${ID}" = "arch" ]; then
+    sudo pacman -Syu
+    sudo pacman -S ${PREREQ} ${PREREQARCH}
 else
     echo "Unsupported OS"
     # here you could ask the user for permission to try and install anyway