script improvement

bin/download.sh

@@ -0,0 +1,42 @@
+#!/usr/bin/env bash
+APP_NAME=''
+DOMAIN=''
+
+help_message(){
+    echo 'Command [-app app_name] [-domain domain_name]'
+    echo 'Example: download.sh -app wordpress -d example.com'
+}
+
+check_input(){
+    if [ -z "${1}" ]; then
+        help_message
+        exit 1
+    fi
+}
+
+app_download(){
+    docker-compose exec litespeed su -c "downloadctl.sh -app ${1} -domain ${2}"
+    exit 0
+}
+
+while [ ! -z "${1}" ]; do
+    case ${1} in
+        -[hH] | -help | --help)
+            help_message
+            ;;
+        -app | -a | -A) shift
+            check_input "${1}"
+            APP_NAME="${1}"
+            ;;
+        -d | -D | -domain) shift
+            check_input "${1}"
+            DOMAIN="${1}"
+            ;;          
+        *) 
+            help_message
+            ;;              
+    esac
+    shift
+done
+
+app_download ${APP_NAME} ${DOMAIN}