248 lines
7.9 KiB
HTML
248 lines
7.9 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
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<HTML>
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<HEAD>
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<title>InfoZIP Archive Utilities Issue 12</title>
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</HEAD>
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<BODY >
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<H4>
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"Linux Gazette...<I>making Linux just a little more fun!</I>
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"</H4>
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<P> <HR> <P>
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<!--===================================================================-->
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<center>
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<H2>InfoZIP Archive Utilities</H2>
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<H4>By Robert G. "Doc" Savage,
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<a href="mailto:dsavage@accessus.net">dsavage@accessus.net</a></H4>
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</center>
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<P> <HR> <P>
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I'm a big fan of utilities. When I saw that CND/RHS were distributed
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with older versions of the InfoZIP zip/unzip suite of archive utilities,
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I made upgrading them my first Linux project. It turned out to be a
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little bit more complicated than I thought it would be.
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<P>
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I especially wanted to add in the DES encryption modules to zip/unzip so
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they would be 100% file compatible with PKWare's archivers for MS-DOS.
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U.S. State Department rules make it difficult to implement this as an
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RPM, so I decided to do it as a classic shell script. The end user will
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have to ftp the source code (especially the DES code module) from the
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site specified in the script.
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<P>
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<P> <HR> <P>
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Script #1:
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<PRE>
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#!/bin/sh
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#
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# undatezip reverses updatezip and restores a Caldera Network Desktop v1.0 or
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# Red Hat Software v2.1/v3.0.3 InfoZIP suite installation to its original zip
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# v2.01 and unzip v5.12 configuration. This should only be necessary if you
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# need to upgrade from a pristine as-installed configuration.
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#
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# original versions >>updatezip >>> new versions
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# without encryption <<< undatezip <<< with encryption
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#
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# Copyright (C) 1996 by Robert G. "Doc" Savage. Permission is granted to
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# distribute this document by electronic means and on CDs provided that it
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# is kept entirely in its original format. Permission is also granted to
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# print and execute this document for personal use. The republishing of
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# this document in part or in whole without the permission of the copyright
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# holder by any means other than as noted above is prohibited.
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#
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# First, the executables
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#
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cd /usr/bin
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rm -f *.encrypt
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rm -f funzip unzip unzipsfx zip zipcloak zipgrep zipinfo zipnote zipsplit
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mv funzip383.export funzip
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mv unzip512.export unzip
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mv unzipsfx512.export unzipsfx
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mv zip201.export zip
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mv zipcloak201.export zipcloak
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mv zipinfo202.export zipinfo
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mv zipnote201.export zipnote
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mv zipsplit201.export zipsplit
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#
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cd /usr/man/man1
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rm -f funzip.1 funzip39.1 unzip.1 unzip52.1 unzipsfx.1 unzipsfx52.1 zip.1 \
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zip21.1 zipinfo.1 zipinfo21.1 zipgrep.1 zipgrep21.1 zipcloak.1 zipnote.1 \
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zipsplit.1
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mv funzip383.1 funzip.1
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mv unzip512.1 unzip.1
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mv unzipsfx512.1 unzipsfx.1
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mv zip201.1 zip.1
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mv zipinfo202.1 zipinfo.1
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#
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cd
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hash -r
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#
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# That's it...
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</PRE>
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<P> <HR> <P>
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Script #2:
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<PRE>
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#!/bin/sh
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#
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# updatezip is a shell script for Caldera Network Desktop v1.0 or Red Hat
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# Software's v2.1/v3.0.3 distributions to upgrade the InfoZIP utilities unzip
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# from v5.12 to v5.2, and zip from v2.01 to v2.1. It also adds the zcrypt DES
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# encryption module not provided in the RHS (or any other) distribution.
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#
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# To undo this upgrade and restore a CND v1.0 or RHS v2.1/v3.0.3 installation
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# to its original zip/unzip configuration, run the companion file undatezip.
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#
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# original versions >>updatezip >>> new versions
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# without encryption <<< undatezip <<< with encryption
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#
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# Copyright (C) 1996 by Robert G. "Doc" Savage. Permission is granted to
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# distribute this document by electronic means and on CDs provided that it
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# is kept entirely in its original format. Permission is also granted to
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# print and execute this document for personal use. The republishing of
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# this document in part or in whole without the permission of the copyright
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# holder by any means other than as noted above is prohibited.
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#
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# It is divided into four sections:
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#
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# Section 1 create the working directory.
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# Section 2 compile the unzip and zip executables.
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# Section 3 replace the existing versions of the zip/unzip suite.
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# Section 4 clean up.
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#
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# Instructions
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# ==========================================================
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#
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# Download these files from <http://www.leo.org/pub/comp/os/os2/archiver>:
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#
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# unzip52.zip
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# zcrypt26.zip
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# zip21.zip
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#
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# Copy them and updatezip to a safe directory (suggest root's home directory
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# /root). Use 'chmod 700 updatezip' to make it executable, then run it.
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# Execution time is slightly over four minutes on a DX4/100 system with 28M
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# of RAM, a 32-bit EISA host adapter, and an older SCSI-1(CCS) hard drive.
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#
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# IMPORTANT
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# ---------
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# Caldera Network Desktop 1.0, when first installed, is missing an important
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# file required to compile certain programs. The following lines create (or
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# recreate) this missing file. This script will fail without it.
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#
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cd /usr/src/linux
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make include/linux/version.h
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cd
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#
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# Section 1. Create the working directory and extract all required files.
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#
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mkdir /scratch
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cp unzip52.zip /scratch
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cp zcrypt26.zip /scratch
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cp zip21.zip /scratch
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cd /scratch
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#
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# Section 2. Compile unzip first, then zip
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#
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unzip unzip52
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unzip -o zcrypt26 # -o forces overwrite of stub files
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cp -f ./unix/Makefile .
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make generic
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rm -f *.o # clean-up before next compile round
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unzip -o zip21
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unzip -o zcrypt26
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cp -f ./unix/Makefile .
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make generic_gcc
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#
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# Section 3. Install new versions of the zip/unzip suite. Preserve the
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# existing executables and man files first. Use soft links to point
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# to the new versions.
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#
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cd /usr/bin
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mv funzip funzip383.export
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mv unzip unzip512.export
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mv unzipsfx unzipsfx512.export
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mv zip zip201.export
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mv zipcloak zipcloak201.export
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mv zipinfo zipinfo202.export
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mv zipnote zipnote201.export
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mv zipsplit zipsplit201.export
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#
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cd /usr/man/man1
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mv funzip.1 funzip383.1
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mv unzip.1 unzip512.1
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mv unzipsfx.1 unzipsfx512.1
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mv zip.1 zip201.1
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# note there is no zipgrep.1 in this distribution
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mv zipinfo.1 zipinfo202.1
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#
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cd /usr/bin
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mv /scratch/funzip funzip39.encrypt
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mv /scratch/unzip unzip52.encrypt
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mv /scratch/unzipsfx unzipsfx52.encrypt
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mv /scratch/zip zip21.encrypt
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mv /scratch/zipcloak zipcloak21.encrypt
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mv /scratch/unix/zipgrep zipgrep21.encrypt
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mv /scratch/zipnote zipnote21.encrypt
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mv /scratch/zipsplit zipsplit21.encrypt
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#
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cd /usr/man/man1
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mv /scratch/unix/funzip.1 funzip39.1
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mv /scratch/unix/unzip.1 unzip52.1
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mv /scratch/unix/unzipsfx.1 unzipsfx52.1
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mv /scratch/man/zip.1 zip21.1
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mv /scratch/man/zipgrep.1 zipgrep21.1
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mv /scratch/unix/zipinfo.1 zipinfo21.1
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#
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# Now establish the soft links
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#
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ln -s funzip39.1 funzip.1
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ln -s unzip52.1 unzip.1
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ln -s unzipsfx52.1 unzipsfx.1
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ln -s zip21.1 zip.1
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ln -s zip.1 zipcloak.1 # remember, zip.1 is
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ln -s zipgrep21.1 zipgrep.1
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ln -s zipinfo21.1 zipinfo.1
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ln -s zip.1 zipnote.1 # already soft-linked
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ln -s zip.1 zipsplit.1 # to zip21.1
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#
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cd /usr/bin
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ln -s funzip39.encrypt funzip
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ln -s unzip52.encrypt unzip
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ln -s unzipsfx52.encrypt unzipsfx
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ln -s zip21.encrypt zip
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ln -s zipcloak21.encrypt zipcloak
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ln -s zipgrep21.encrypt zipgrep
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ln -s unzip52.encrypt zipinfo # a special link
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ln -s zipnote21.encrypt zipnote
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ln -s zipsplit21.encrypt zipsplit
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#
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# Section 4. Clean up the leftovers.
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#
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cd # go to your home directory
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rm -rf /scratch # nothing worth saving in the scratch directory
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hash -r # re-sync the paths
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#
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# That's it...
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</PRE>
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<P> <HR> <P>
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--Doc Savage, Sr. Network Engineer, I-NET, Inc.
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<!--===================================================================-->
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<P> <hr> <P>
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<center><H5>Copyright © 1996, Robert G. Savage <BR>
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Published in Issue 12 of the Linux Gazette</H5></center>
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|
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<!--===================================================================-->
|
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<P> <hr> <P>
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