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What is REM Windows command?

The REM command in Windows is used to add comments in batch files without affecting the execution of the script. It helps in documenting code and making it more readable.

Terminal window
rem [comment]
OptionDescription
ParameterDescription
commentSpecifies the text to be used as a comment in the batch file.
Terminal window
rem This is a comment line

Adds a comment line to a batch file without affecting its execution.

Terminal window
rem ipconfig /all

Disables the execution of the “ipconfig /all” command without deleting it from the script.

Terminal window
rem echo "Testing 123"

Temporarily removes the “echo “Testing 123"" command for testing purposes in a batch file.

Terminal window
rem ==== Network Configuration ====

Uses comments to organize and label different sections within a batch file for better readability.

Terminal window
rem ----- Troubleshooting Step 1 -----

Identifies specific troubleshooting steps or debugging points within a batch file using comment lines.

To use the rem command in CMD, execute the following command:

Terminal window
rem This is a comment

What is the purpose of the rem command in Windows CMD?

Section titled “What is the purpose of the rem command in Windows CMD?”

The rem command is used to add comments within a batch script to document and explain the various parts of the script without affecting its execution.

Can I use the rem command to disable a specific line of code in a batch file?

Section titled “Can I use the rem command to disable a specific line of code in a batch file?”

Yes, you can use the rem command to disable a line of code in a batch file by adding “rem” at the beginning of the line.

Terminal window
echo Hello World
rem echo This line will be ignored

Is it possible to use multiple rem statements in a single batch file?

Section titled “Is it possible to use multiple rem statements in a single batch file?”

Yes, you can insert multiple rem statements within a batch file to add comments and explanations at different parts of the script.

Terminal window
rem This is the first comment
rem This is the second comment
rem This is the third comment

How can I add a comment at the end of an existing command using rem?

Section titled “How can I add a comment at the end of an existing command using rem?”

To add a comment at the end of an existing command, separate the command and the comment with the ”&” operator when using the rem command.

Terminal window
echo Hello World & rem This is a comment at the end of the line

Can I use the rem command to temporarily remove code from a batch file without deleting it?

Section titled “Can I use the rem command to temporarily remove code from a batch file without deleting it?”

Yes, you can use the rem command to comment out specific lines of code in a batch file instead of deleting them, to easily enable them later if needed.

Terminal window
rem set variable=value

Is the rem command case-sensitive in Windows CMD?

Section titled “Is the rem command case-sensitive in Windows CMD?”

No, the rem command is not case-sensitive in Windows CMD. You can use either “rem” or “REM” to add comments in batch scripts without any difference in functionality.

Terminal window
REM This is a comment
Rem This is another comment
  1. Adding comments to batch files
  2. Documenting code for better understanding
  3. Temporarily disabling commands for testing
  4. Providing explanations for complex or critical code segments