How to "comment-out" (add comment) in a batch/cmd?

 

In batch scripting for Windows Command Prompt (CMD), you can add comments using the REM (remark) keyword. Comments in batch scripts are lines that are ignored by the interpreter and serve as notes for human readers. Here's an example:

batch

@echo off
REM This is a comment explaining the purpose of the script

REM You can add more comments here
echo "Hello, World!"

In this example, the lines starting with REM are comments. They are ignored by the CMD interpreter and are used to provide explanations or notes about the script's functionality. The actual code that gets executed is the echo "Hello, World!" line.

You can also use double colons :: to add comments in batch scripts. However, using :: as comments has limitations in some situations, like within code blocks (parentheses).

Here's the same example using :::

batch

@echo off
:: This is a comment explaining the purpose of the script

:: You can add more comments here
echo "Hello, World!"

Both REM and :: are commonly used for adding comments to batch scripts. Choose the one that fits your preferences and coding style.