On 10/05/19 07:58, Ole Tange wrote: > Fra: Pádraig Brady <[email protected]> > >> In the general case write access would probably be required, like with sort >> above. > > Doing similar to `sort` seems like wise approach: In memory if short. On > $TMPDIR if big. > > I did not know about BSD's signify. The 'ftp url | ...' is the primary use > case I would use it for. Another would be to read an old (maybe corrupted) > backup that I had checksums of.
Note if you didn't mind the data getting through, and only wanted to verify after, one could check in parallel with something like: ftp url | tee >(sha256sum --status -c <(echo "$chksum -") && touch chksum.ok) | tar -xf - && rm chksum.ok cheers, Pádraig
