Appending a Line to a File with COPY Con or ECHO

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Article ID: 68787 - View products that this article applies to.
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You can add a line to the end of a file, such as your CONFIG.SYS file, without using an editor if you use the COPY command in the following form:
copy filename.ext + con


Copy echoes FILENAME.EXT as it is copied, then it echoes CON and the cursor to show that it is now copying from the CONsole. For example:
C:\>copy config.sys + con
This causes MS-DOS to echo CONFIG.SYS and CON, with the cursor. Enter the text to be added to the file, then press CTRL+Z and ENTER to end your modification. The following example adds a line to the end of CONFIG.SYS:
C:\>copy config.sys + con
shell=c:\ c:\ /p /e:512

1 File(s) copied
If only one line is to be added and that line doesn't contain any redirection, you can also use the ECHO command as follows:
C:\>echo shell=c:\ c:\ /p /e:512 >> config.sys
NOTE: If the last line of the text file does not contain a carriage return, the line being added is appended to the end of the last line.


Article ID: 68787 - Last Review: May 12, 2003 - Revision: 2.0
  • Microsoft MS-DOS 3.1
  • Microsoft MS-DOS 3.2 Standard Edition
  • Microsoft MS-DOS 3.21 Standard Edition
  • Microsoft MS-DOS 3.3 Standard Edition
  • Microsoft MS-DOS 3.3a
  • Microsoft MS-DOS 4.0 Standard Edition
  • Microsoft MS-DOS 4.01 Standard Edition
  • Microsoft MS-DOS 5.0 Standard Edition
  • Microsoft MS-DOS 5.0a
  • Microsoft MS-DOS 6.0 Standard Edition
  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.21 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition
Retired KB Content Disclaimer
This article was written about products for which Microsoft no longer offers support. Therefore, this article is offered "as is" and will no longer be updated.

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