Using the MD5 check sum

[Jeff Vian]

On Sun, 2005-03-06 at 18:03 -0800, Brad D wrote:
> I would like a quick explanation on how to use the md5sum program to
> check the ISO downloads with. 
>  
> The intructions on the redhat site state, "After downloading the ISO
> images, check the MD5 checksums for the ISO images to ensure that your
> download was successful. Do this by running the md5sum program from a
> shell prompt against your ISO images and comparing the values returned
> against the ones published by Red Hat."
>  
> How do I use the "shell prompt" to do this?
>  
> Tahnk you
> 

I download both the iso files and the MD5SUM file.
then a simple command such as this should tell you if the checksum is
valid or not (A response is good, no response means they don't match).

# grep `md5sum file.iso` MD5SUM

Note: Those are the backticks in the line above.