Computer and Software Support


Rem

This page is from Microsoft

Updated: January 21, 2005

Enables you to include comments (remarks) in a batch file or in your configuration files.
 
 
Syntax
rem [Comment]
Parameters
Comment
Specifies any string of characters you want to include as a comment.
/?
Displays help at the command prompt.
Remarks
  • Using the echo command to display comments

    The rem command does not display comments on the screen. You must use the echoon command in your batch or Config.nt file to display comments on the screen.

  • Restrictions on batch file comments

    You cannot use a redirection character "(" or ")" or pipe (|) in a batch file comment.

  • Using rem to add vertical spacing

    Although you can use rem without a comment to add vertical spacing to a batch file, you can also use blank lines. The blank lines are ignored when processing the batch program.

Examples
The following example shows a batch file that uses remarks for both explanations and vertical spacing:
@echo off
rem  This batch program formats and checks new disks.
rem  It is named Checknew.bat.
rem echo Insert new disk in drive B.
pause 
format b: /v chkdsk b: 

To include an explanatory comment before the prompt command in your Config.nt file, add the following lines to Config.nt:

rem Set prompt to indicate current directory
prompt $p$g

Formatting legend

Format Meaning
Italic Information that the user must supply
Bold Elements that the user must type exactly as shown
Ellipsis (...) Parameter that can be repeated several times in a command line
Between brackets ([]) Optional items
Between braces ({}); choices separated by pipe (|). Example: {even|odd} Set of choices from which the user must choose only one
Courier font Code or program output