Piping data on Windows command prompt

Question

I need to get a backup dump of a large (~8gb) svn repository. My current method involves using svnadmin dump to a file and then using 7-Zip to compress and split the file.

> svnadmin dump c:\path\to\myrepo > c:\svndump.svn
> 7z svndump.svn svndump.7z      // or whatever the correct syntax is

I was wondering if there would be a way to skip the middle-man here, and get the svn dump data to be compressed in one go by using pipes or something? Is this possible? What would the syntax be?

Answer 1

svnadmin dump dumps to standard out by default and the 7z command line can read from standard input using the -si switch.

svnadmin dump c:\path\to\myrepo | 7z a -si svndump.7z