Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!zaphod.mps.ohio-state.edu!mips!spool.mu.edu!uwm.edu!bionet!agate!e260-1c.berkeley.edu!c60b-1eq From: c60b-1eq@e260-1c.berkeley.edu (Noam Mendelson) Newsgroups: comp.binaries.ibm.pc.d Subject: Re: help Message-ID: <1991Apr14.013243.29075@agate.berkeley.edu> Date: 14 Apr 91 01:32:43 GMT References: <7323@munnari.oz.au> <1991Apr13.050719.8740@uwasa.fi> Sender: usenet@agate.berkeley.edu (USENET Administrator) Organization: University of California, Berkeley Lines: 24 In article cho@sol4.cs.psu.edu (Sehyeong Cho) writes: >>In article <7323@munnari.oz.au> ksiew@ecr.mu.oz.au (Kok-Hsien SIEW) writes: >>>I am new to this usenet area so please dont be too hard on me. >>>Questions: >>> 1) Is there a pkzip/pkunzip for unix (main frame in my uni) >I had the same question. I searched (maybe not hard enough) one of the >ftp sites. There were arc and zoo for unix, but no zip. >Does anyone know where it hides? Allow me to point out the subtle differences between compression programs: ZOO and LHa (LHArc too) are free programs for which source code is publicly available. ARC is an outdated straight-Lempel-Ziv compression program which is well outdated. Phil Katz intended ZIP as a money-making scheme for the MSDOS market. The source code is not available. The ZIP file format is, however, and hence the presence of UNZIP programs. Theoretically, one could write a compatible ZIPping procedure, but they'll have to devise all their own compression code (meaning we'll probably never see one). -- +==========================================================================+ | Noam Mendelson ..!agate!ucbvax!web!c60b-1eq | "I haven't lost my mind, | | c60b-1eq@web.Berkeley.EDU | it's backed up on tape | | University of California at Berkeley | somewhere." |