Does tail still need the 4K byte limit?
Bill Stewart 201-949-0705 ho95c.att.com!wcs
wcs at cbnewsh.ATT.COM
Wed May 3 07:18:08 AEST 1989
TAIL(1) (Directory and File Management Utilities) TAIL(1)
BUGS
Tails relative to the end of the file are stored in a
buffer, and thus are limited in length. Various kinds of
anomalous behavior may happen with character special files.
WARNING
The tail command will only tail the last 4096 bytes of a
file regardless of its line count.
Page 1 (last mod. 2/11/88)
This was all very well in PDP-11 days, when you wanted a nice little
utility that didn't use much memory. But now that "everybody" has
virtual memory, there's no reason to retain this behavior; you can
still make the initial buffer size be 4K to keep the "V7 > 4.2"
people happy, and malloc more memory as needed so that tail always
does what you ask it to.
Has anybody written a public domain version of tail? Is this fixed
in SVR4 or 4.3bsd? Is it time to write GNUtail?
Thanks; Bill
--
# Bill Stewart, AT&T Bell Labs 2G218 Holmdel NJ 201-949-0705 ho95c.att.com!wcs
# also found at 201-271-4712 tarpon.att.com!wcs
# welcome, to mars, eh, hosers! Have a brew and some donuts, eh?
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