diff --git a/main.cpp b/main.cpp
index fee9594..6bb03ce 100644
--- a/main.cpp
+++ b/main.cpp
@@ -88,16 +88,24 @@ int main(int argc, char *argv[]) {
     workingDirectoryOption.setDefaultValue(workingDirectoryDefault);
     parser.addOption(workingDirectoryOption);
 
-    QCommandLineOption maintenanceOption("m",
+    QCommandLineOption maintenanceOption(QStringList() << "m" << "maintenance",
         QCoreApplication::translate("main", "Maintenance mode for underlying script"));
     parser.addOption(maintenanceOption);
 
     // test-mode: edit the file update_log.csv and execute the commands
     // contained in it. Do not call the update-script.
-    QCommandLineOption testOption("t",
+    QCommandLineOption testOption(QStringList() << "t" << "test",
         QCoreApplication::translate("main", "Test mode for ATBUpdateTool"));
     parser.addOption(testOption);
 
+    QCommandLineOption execScriptOption(QStringList() << "e" << "execute-script-only",
+        QCoreApplication::translate("main", "ATBUpdateTool executes update-script only. No download of any files."));
+    parser.addOption(execScriptOption);
+
+    QCommandLineOption dryRunOption(QStringList() << "d" << "dry-run",
+        QCoreApplication::translate("main", "Start ATBUpdateTool in dry-run-mode. No actual actions."));
+    parser.addOption(dryRunOption);
+
     // TODO:
     // add some additional parameters
     // --dry-run
@@ -113,6 +121,8 @@ int main(int argc, char *argv[]) {
     QString workingDir = parser.value(workingDirectoryOption);
     bool maintenanceMode = parser.isSet(maintenanceOption);
     bool testMode = parser.isSet(testOption);
+    bool executeScriptOnly = parser.isSet(execScriptOption);
+    bool dryRun = parser.isSet(dryRunOption);
     QString const rtPath = QCoreApplication::applicationDirPath();
 
     if (plugInDir == pluginDefault) {
@@ -123,12 +133,15 @@ int main(int argc, char *argv[]) {
                     << "does not exists, but has to contain dc-library";
         exit(-1);
     }
-    qInfo() << "pwd" << "=" << rtPath;
-    qInfo() << "plugInDir" << "=" << plugInDir;
-    qInfo() << "plugInName" << "=" << plugInName;
-    qInfo() << "workingDir" << "=" << workingDir;
-    qInfo() << "maintenanceMode" << "=" << maintenanceMode;
-    qInfo() << "testMode" << "=" << testMode;
+
+    qInfo() << "pwd ..............." << rtPath;
+    qInfo() << "plugInDir ........." << plugInDir;
+    qInfo() << "plugInName ........" << plugInName;
+    qInfo() << "workingDir ........" << workingDir;
+    qInfo() << "maintenanceMode ..." << maintenanceMode;
+    qInfo() << "testMode .........." << testMode;
+    qInfo() << "execScriptOnly ...." << executeScriptOnly;
+    qInfo() << "dryRun ............" << dryRun;
 
     // before loading the library, delete all possible shared memory segments
 #if defined Q_OS_LINUX || defined Q_OS_UNIX