pax_global_header00006660000000000000000000000064121627162630014520gustar00rootroot0000000000000052 comment=70f0b93516d0ee222db5cf1241aad0db1b721c0d arc-5.21q/000077500000000000000000000000001216271626300123755ustar00rootroot00000000000000arc-5.21q/Arc521.doc000066400000000000000000001312571216271626300140320ustar00rootroot00000000000000 ARC File Archive Utility Version 5.20 (C)COPYRIGHT 1985,86 by System Enhancement Associates, Inc. You may copy and distribute this program freely, under the terms of the General Public License. This document describes version 5.20 of the ARC file utility, which was created by System Enhancement Associates, Inc. in October of 1986. TABLE OF CONTENTS Section Page License ......................................... 1 Introduction .................................... 2 Using ARC ....................................... 3 ARC commands .................................... 5 Adding files ................................ 5 Extracting files ............................ 7 Deleting files .............................. 8 Listing archive entries ..................... 8 Running files ............................... 10 Printing files .............................. 11 Testing an archive .......................... 11 Converting an archive ....................... 12 ARC options ..................................... 13 Suppressing compression ..................... 13 Backup retention ............................ 14 Message suppression ......................... 15 Encryption/Decryption ....................... 17 RAMdisk support ................................. 18 MARC ............................................ 19 ARCE ............................................ 20 Version numbers ................................. 21 Common questions and answers .................... 22 Revision history ................................ 25 Changes in version 3 ........................ 25 Changes in version 4 ........................ 25 Changes in version 4.1 ...................... 26 Changes in version 4.3 ...................... 26 Changes in version 4.4 ...................... 27 Changes in version 4.5 ...................... 27 Changes in version 5.0 ...................... 28 Changes in version 5.1 ...................... 29 Changes in version 5.2 ...................... 30 Program history and credits ..................... 31 Bulletin boards ................................. 33 LICENSE ARC is Free Software distributed under the terms of the GNU General Public License (See COPYING for license details). ARC Page 1 INTRODUCTION ARC is used to create and maintain file archives. An archive is a group of files collected together into one file in such a way that the individual files may be recovered intact. ARC is different from other archive and library utilities in that it automatically compresses the files being archived, so that the resulting archive takes up a minimum amount of space. When ARC is used to add a file to an archive it analyzes the file to determine which of three storage methods will result in the greatest savings. These three methods are: 1) No compression; the file is stored as is. 2) Repeated-character compression; repeated sequences of the same byte value are collapsed into a three- byte code sequence. 3) Dynamic Lempel-Zev compression; the file is stored as a series of variable size bit codes which represent character strings, and which are created "on the fly". Note that since one of the three methods involves no compression at all, the resulting archive entry will never be larger than the original file. ARC Page 2 USING ARC ARC is invoked with a command of the following format: ARC [