The debian manual pages define that tshark should have the functionality to export files discovered in a tcp stream with the tshark pcapname.pcap --export-objects command. If you ctrl-f the following page you will find this
https://manpages.debian.org/testing/tshark/tshark.1.en.html
"export-objects , Export all objects within a protocol into directory destdir. The available values for protocol can be listed with --export-objects help."
However when running the latest version of tshark in debian jessie it is possible to see that this is not actually the case.
tshark: unrecognized option '--export-objects'
Is this an expected error or have i messed up? Or is it the case that the tshark developers/package developers have neglected to include this functionality outside of the manual pages.
That option is quite recent, so my guess would be that you have an older version of tshark.
The --export-objects option requires tshark v2.4.0.