tunafish /n./ In hackish lore, refers to the mutated
punchline of an age-old joke to be found at the bottom of the
manual pages of `tunefs(8)' in the original BSD 4.2
distribution. The joke was removed in later releases once
commercial sites started using 4.2. Tunefs relates to the
`tuning' of file-system parameters for optimum performance, and
at the bottom of a few pages of wizardly inscriptions was a `BUGS'
section consisting of the line "You can tune a file system, but
you can't tunafish". Variants of this can be seen in other BSD
versions, though it has been excised from some versions by
humorless management droids. The [nt]roff source for SunOS
4.1.1 contains a comment apparently designed to prevent this:
"Take this out and a Unix Demon will dog your steps from now until
the `time_t''s wrap around."
[It has since been pointed out that indeed you can tunafish.
Usually at a canning factory... --ESR]
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