File-copy checker?

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I seem to recall that, at some time in the past, there was a way to
check the fidelity of a file copy against the original, to make sure
the copy was exactly like the original - no bit errors, etc. Does
anyone know of a way to do that today? Thanks for any help.

(e-mail address removed)

"Politicians are conniving, wheeler-dealing scum. Don't have a fit of morals
over them; they wouldn't, over you."
--Harry Pearce, "MI-5"
 
I seem to recall that, at some time in the past, there was a way to
check the fidelity of a file copy against the original, to make sure
the copy was exactly like the original - no bit errors, etc. Does
anyone know of a way to do that today? Thanks for any help.
Click to expand...
The reason I ask is that I'm copying a LOT of graphics and text files
to a backup, and I'd like to make absolutely sure my files are safe
without having to test-view each and every one.

(e-mail address removed)

"Politicians are conniving, wheeler-dealing scum. Don't have a fit of morals
over them; they wouldn't, over you."
--Harry Pearce, "MI-5"
 
I seem to recall that, at some time in the past, there was a way to
check the fidelity of a file copy against the original, to make sure the
copy was exactly like the original - no bit errors, etc. Does anyone
know of a way to do that today? Thanks for any help.

(e-mail address removed)

"Politicians are conniving, wheeler-dealing scum. Don't have a fit of
morals
over them; they wouldn't, over you."
--Harry Pearce, "MI-5"
Click to expand...

md5sum is generally used on ISO disk images. You simply run it on the
original file and then on the copy.
 
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