erating system> 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 ef="module.php?name=Lexikon&file=search&eid=1&query=4.2BSD">4.2BSD distribution. The joke was removed in later releases once commercial sites started using 4.2. Tunefs relates to the "tuning" of ef="module.php?name=Lexikon&file=search&eid=1&query=file-system">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 humourless 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." [ef="module.php?name=Lexikon&file=search&eid=1&query=Jargon File">Jargon File] (1997-01-12)
