Rem Command in Windows: Tips and Examples

The rem command helps write comments (comments) in a batch file or CONFIG.SYS. If no comment is specified, the rem command adds a vertical space.For a better understanding of how to use this command, see the example section below.

Command syntax rem

 rem [] 

Command parameter rem

Parameters

Describe

Specify a character string to attach comments.

/?

Show help at thecommand prompt.

Remarks command rem

• The rem command will not display comments on the screen. You must use the echo command in your batch file, or CONFIG.SYS to display the annotations on the screen.
• You cannot use navigation characters () or (|) in a batch file comment.
• Although you can use the rem command without annotations to add vertical spaces to the batch file, you can also use blank lines.The blank lines will be ignored when the batch file is processed.

Example rem command

the example below shows a batch file using comments for comments and vertical spacing:

 @echo off 
 rem t?p tin ch??ng trình này khác nhau và ki?m tra các ??a m?i. 
 rem It is named Checknew.bat. 
 rem 
 rem echo Insert new disk in Drive B. 
 pause 
 format b: / v chkdsk b: 

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