DOS Command Question

[Moose423956]

I have a requirement to create some batch commands to truncate some .dat files from 4000 bytes per record to 100, to get rid of loads of extraneous blanks in the file, so they can be transmitted more efficiently.

Can anyone recommend what DOS command would do that? I don't know DOS very well, so I'm not even sure if it's possible.

Thanks
Moose

[r0bly0ns]

if it's just text files and they only so they can be transmitted can you not just zip them up?

I beleive winzip has a comand line interface you could write a batch file for.

[Moose423956]

if it's just text files and they only so they can be transmitted can you not just zip them up?

I beleive winzip has a comand line interface you could write a batch file for.

I thought about that, but then the other end has to unzip them, and I don't know if they'll want to do that. I'll suggest it though. Cheers.

Edit: Just looked at Winzip, and saw this about the command line interface:

Note: at the time of this writing, the command line support add-on has still not been officially released, but a pre-release beta test version is available as a free download from the web page http://www.winzip.com/wzcline.cgi.
The WinZip Command Line Support Add-On lets you use WinZip's® power within batch files, macros, and other situations where you have a specific task and would prefer to accomplish it quickly or automatically, without using the usual WinZip graphical user interface.

[VectraMan]

This works:

http://www.info-zip.org/

Not really DOS of course, but we'll let that slide.