How to Add Comments in a Batch or CMD File

3] Using the sign “%==%”

%= =% is the most flexible way to add comments. You can use this method to add comments to lines of code, to command parameters, or variables.

For example, the following code will add the comment “This is a comment for the line of code” to the first line of code:

set <strong>“var=3”</strong> %= This is a comment on the same line=%

 “%==%” is a less common way to disable parts of code. This allows you to quickly disable several lines of code and easily reactivate them. However, it may not be as common as other options and is less familiar to many developers.

The difference between “REM”, “::”, and “%==%”

Here is a table summarizing the differences between REM, ::, and %==%:

  •  “REM” is the official command for comments in batch files.
  •  “::” is a shorter alternative, but it only works at the beginning of the line.
  •  “%===%” is a less common way to quickly disable code.
CharacteristicBRAKE::%= =%
Sign#::%= =%
CompatibilityAll versions of CMDAll versions of CMDWindows 10 and higher
FlexibilityKeepKeepTall

In general, REM is the most common and compatible way to add comments to a batch file. :: is a shorter and more efficient way, but it is not compatible with all versions of CMD. %= =% is the most flexible way, but it is only available on Windows 10 and higher.

When to use a particular method?

  • Use “REM” for clear comments and explanations that require an official introduction.
  • Use “::” for short comments that clarify the code at the beginning of the line.
  • Use “%===%” to disable longer sections of code that need to be temporarily disabled.

Conclusion

Ultimately, your choice between “REM,” “::,” and “%==%” depends on personal preferences and project demands. “REM” is the official choice for comments, “::” is a more concise option commonly used at the beginning of a line, and “%==%” is a less common way to disable code. Understand the differences and use the method that best suits your writing style and development needs

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