Index: packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py
===================================================================
--- packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py
+++ packages/Python/lldbsuite/test/functionalities/command_regex/TestCommandRegex.py
@@ -24,7 +24,7 @@
         """Test a simple scenario of 'command regex' invocation and subsequent use."""
         import pexpect
         prompt = "(lldb) "
-        regex_prompt = "Enter one of more sed substitution commands in the form: 's/<regex>/<subst>/'.\r\nTerminate the substitution list with an empty line.\r\n"
+        regex_prompt = "Enter one or more sed substitution commands in the form: 's/<regex>/<subst>/'.\r\nTerminate the substitution list with an empty line.\r\n"
         regex_prompt1 = "\r\n"
 
         child = pexpect.spawn('%s %s' %
Index: source/Commands/CommandObjectCommands.cpp
===================================================================
--- source/Commands/CommandObjectCommands.cpp
+++ source/Commands/CommandObjectCommands.cpp
@@ -1009,9 +1009,12 @@
 
 protected:
   void IOHandlerActivated(IOHandler &io_handler) override {
+    if (!io_handler.GetIsInteractive() && !io_handler.GetIsRealTerminal())
+      // Don't print instructions during batch execution, such as .lldbinit.
+      return;
     StreamFileSP output_sp(io_handler.GetOutputStreamFile());
     if (output_sp) {
-      output_sp->PutCString("Enter one of more sed substitution commands in "
+      output_sp->PutCString("Enter one or more sed substitution commands in "
                             "the form: 's/<regex>/<subst>/'.\nTerminate the "
                             "substitution list with an empty line.\n");
       output_sp->Flush();