Single Instance Service

[Olivier Nicole]

> Sure it is.  You will need to write a small shell script to scan
> your disk volume and calculate the checksum of each file.  When
> ever it finds a duplicated checksum, then it copies the file into
> the central store and replaces the on-disk copies with symbolic
> links.  That's fairly trivial to write.

Beside, what should be the behaviour when one wishes to modify his own
copy of a document? How does Single Instance acts in that case?

If you establish a link, there is only one version of the file, once
and forever (unless you go and unlink it manually), so when one
modifies the file, modification applies for everyone.

Olivier