README revision 221715
1221115Sobrien************************************************************************** 2221115Sobrien************************************************************************** 3221115Sobrien** ** 4221115Sobrien** The FreeBSD Project has chosen to redistribute and modify Less under ** 5221115Sobrien** the 'Less License' (as described in the 'LICENSE' file). ** 6221115Sobrien** ** 7221115Sobrien************************************************************************** 8221115Sobrien************************************************************************** 960786Sps 10221715Sdelphij Less, version 443 1160786Sps 12221715Sdelphij This is the distribution of less, version 443, released 09 Apr 2011. 1360786Sps This program is part of the GNU project (http://www.gnu.org). 1460786Sps 1560786Sps This program is free software. You may redistribute it and/or 1660786Sps modify it under the terms of either: 1760786Sps 1860786Sps 1. The GNU General Public License, as published by the Free 19191930Sdelphij Software Foundation; either version 3, or (at your option) any 2060786Sps later version. A copy of this license is in the file COPYING. 2160786Sps or 2260786Sps 2. The Less License, in the file LICENSE. 2360786Sps 2489019Sps Please report any problems to bug-less@gnu.org or markn@greenwoodsoftware.com. 2589019Sps See http://www.greenwoodsoftware.com/less for the latest info. 2660786Sps 2760786Sps========================================================================= 2860786Sps 2960786SpsThis is the distribution of "less", a paginator similar to "more" or "pg". 3060786Sps 3160786SpsThe formatted manual page is in less.man. 3260786SpsThe manual page nroff source is in less.nro. 3360786SpsMajor changes made since the last posted version are in NEWS. 3460786Sps 3560786Sps======================================================================= 3660786SpsINSTALLATION (Unix systems only): 3760786Sps 3860786Sps1. Move the distributed source to its own directory and unpack it, 3960786Sps if you have not already done so. 4060786Sps 4160786Sps2. Type "sh configure". 4260786Sps This will generate a Makefile and a defines.h. 4360786Sps Warning: if you have a GNU sed, make sure it is version 2.05 or later. 4460786Sps 4560786Sps The file INSTALL describes the usage of the configure program in 4660786Sps general. In addition, these options to configure are supported: 4760786Sps 4860786Sps --with-editor=program 4960786Sps Specifies the default editor program used by the "v" command. 5060786Sps The default is "vi". 51170256Sdelphij 5260786Sps --with-regex=lib 5360786Sps Specifies the regular expression library used by less for pattern 5460786Sps matching. The default is "auto", which means the configure program 5560786Sps finds a regular expression library automatically. Other values are: 5660786Sps posix Use the POSIX-compatible regcomp. 5760786Sps pcre Use the PCRE library. 5860786Sps regcmp Use the regcmp library. 5960786Sps re_comp Use the re_comp library. 6060786Sps regcomp Use the V8-compatible regcomp. 6160786Sps regcomp-local Use Henry Spencer's V8-compatible regcomp 6260786Sps (source is supplied with less). 63161475Sdelphij --with-secure 64161475Sdelphij Builds a "secure" version of less, with some features disabled 65161475Sdelphij to prevent users from viewing other files, accessing shell 66161475Sdelphij commands, etc. 6760786Sps 68170256Sdelphij 6960786Sps3. It is a good idea to look over the generated Makefile and defines.h 7060786Sps and make sure they look ok. If you know of any peculiarities of 7160786Sps your system that configure might not have detected, you may fix the 7260786Sps Makefile now. Take particular notice of the list of "terminal" 7360786Sps libraries in the LIBS definition in the Makefile; these may need 7460786Sps to be edited. The terminal libraries will be some subset of 7560786Sps -lncurses -lcurses -ltermcap -ltermlib 7660786Sps 7760786Sps If you wish, you may edit defines.h to remove some optional features. 7860786Sps If you choose not to include some features in your version, you may 7960786Sps wish to edit the manual page "less.nro" and the help page "less.hlp" 8060786Sps to remove the descriptions of the features which you are removing. 8160786Sps If you edit less.hlp, you should run "make -f Makefile.aut help.c". 8260786Sps 8360786Sps4. Type "make" and watch the fun. 8460786Sps 8560786Sps5. If the make succeeds, it will generate the programs "less", 8660786Sps "lesskey" and "lessecho" in your current directory. Test the 8760786Sps generated programs. 8860786Sps 8960786Sps6. When satisfied that it works, if you wish to install it 9060786Sps in a public place, type "make install". 9160786Sps 9260786Sps The default install destinations are: 9360786Sps Executables (less, lesskey, lessecho) in /usr/local/bin 9460786Sps Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 9560786Sps If you want to install any of these files elsewhere, define 9660786Sps bindir and/or mandir to the appropriate directories. 9760786Sps 9860786SpsIf you have any problems building or running "less", suggestions, 9989019Spscomplaints, etc., you may mail to the author at markn@greenwoodsoftware.com. 10060786Sps 10160786SpsNote to hackers: comments noting possible improvements are enclosed 10260786Spsin double curly brackets {{ like this }}. 10360786Sps 104221715Sdelphij(Note that the above note was originally written at a time when 105221715Sdelphij"hackers" most commonly meant "enthusiastic and dedicated computer 106221715Sdelphijprogrammers", not "persons who attempt to circumvent computer security".) 10760786Sps 10860786Sps 109221715Sdelphij 11060786Sps======================================================================= 11160786SpsINSTALLATION (MS-DOS systems only, 11260786Sps with Microsoft C, Borland C, or DJGPP) 11360786Sps 11460786Sps1. Move the distributed source to its own directory. 11560786Sps Depending on your compiler, you may need to convert the source 11660786Sps to have CR-LF rather than LF as line terminators. 11760786Sps 11863128Sps2. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 11960786Sps If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 12060786Sps If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 12160786Sps 12260786Sps3. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 12360786Sps are correct. CC should be the name of your C compiler and 12460786Sps LIBDIR should be the directory where the C libraries reside (for 12560786Sps Microsoft C only). If these definitions need to be changed, you can 12660786Sps either modify the definitions directly in MAKEFILE, or set your 12760786Sps environment variables CC and/or LIBDIR to override the definitions 12860786Sps in MAKEFILE. 12960786Sps 13060786Sps4. If you wish, you may edit DEFINES.DS to remove some optional features. 13160786Sps If you choose not to include some features in your version, you may 13260786Sps wish to edit the manual page LESS.MAN and the help page HELP.C 13360786Sps to remove the descriptions of the features which you are removing. 13460786Sps 13560786Sps5. Run your "make" program and watch the fun. 13660786Sps If your "make" requires a flag to import environment variables, 13760786Sps you should use that flag. 13860786Sps If your compiler runs out of memory, try running "make -n >cmds.bat" 13960786Sps and then run cmds.bat. 14060786Sps 14160786Sps6. If the make succeeds, it will generate the programs "LESS.EXE" and 14260786Sps "LESSKEY.EXE" in your current directory. Test the generated programs. 14360786Sps 14460786Sps7. When satisfied that it works, you may wish to install LESS.EXE and 14560786Sps LESSKEY.EXE in a directory which is included in your PATH. 14660786Sps 14760786Sps 14860786Sps 14960786Sps======================================================================= 15060786SpsINSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 15160786Sps with Borland C or Microsoft Visual C++) 15260786Sps 15360786Sps1. Move the distributed source to its own directory. 15460786Sps 15560786Sps2. If you are using Borland C, rename Makefile.wnb to Makefile. 15660786Sps If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 15760786Sps 15860786Sps3. Check the Makefile to make sure the definitions look ok. 15960786Sps 16060786Sps4. If you wish, you may edit defines.wn to remove some optional features. 16160786Sps If you choose not to include some features in your version, you may 16260786Sps wish to edit the manual page less.man and the help page help.c 16360786Sps to remove the descriptions of the features which you are removing. 16460786Sps 16560786Sps5. Type "make" and watch the fun. 16660786Sps 16760786Sps6. If the make succeeds, it will generate the programs "less.exe" and 16860786Sps "lesskey.exe" in your current directory. Test the generated programs. 16960786Sps 17060786Sps7. When satisfied that it works, if you wish to install it 17160786Sps in a public place, type "make install". 17260786Sps See step 6 of the Unix installation instructions for details 17360786Sps on how to change the default installation directories. 17460786Sps 17560786Sps 17660786Sps 17760786Sps======================================================================= 17860786SpsINSTALLATION (OS/2 systems only, 17960786Sps with EMX C) 18060786Sps 18160786Sps1. Move the distributed source to its own directory. 18260786Sps 18360786Sps2. Rename Makefile.o2e to Makefile. 18460786Sps 18560786Sps3. Check the Makefile to make sure the definitions look ok. 18660786Sps 18760786Sps4. If you wish, you may edit defines.o2 to remove some optional features. 18860786Sps If you choose not to include some features in your version, you may 18960786Sps wish to edit the manual page less.man and the help page help.c 19060786Sps to remove the descriptions of the features which you are removing. 19160786Sps 19260786Sps5. Type "make" and watch the fun. 19360786Sps 19460786Sps6. If the make succeeds, it will generate the programs "less.exe" and 19560786Sps "lesskey.exe" in your current directory. Test the generated programs. 19660786Sps 19760786Sps7. Make sure you have the emx runtime installed. You need the emx DLLs 19860786Sps emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 19960786Sps Make sure you have termcap.dat either in the default location or 20060786Sps somewhere in a directory listed in the PATH or INIT environment 20160786Sps variables. 20260786Sps 20389019Sps8. When satisfied that it works, you may wish to install less.exe, 20489019Sps lesskey.exe and scrsize.exe in a directory which is included in 20589019Sps your PATH. scrsize.exe is required only if you use a terminal 20689019Sps emulator such as xterm or rxvt. 20760786Sps 20860786Sps 20960786Sps 21060786Sps======================================================================= 21160786SpsINSTALLATION (OS-9 systems only, 21260786Sps with Microware C or Ultra C) 21360786Sps 21460786Sps1. Move the distributed source to its own directory. 21560786Sps 21660786Sps2. If you are using Microware C, rename Makefile.o9c to Makefile. 21760786Sps If you are using Ultra C, rename Makefile.o9u to Makefile. 21860786Sps 21960786Sps3. Check the Makefile to make sure the definitions look ok. 22060786Sps 22160786Sps4. If you wish, you may edit defines.o9 to remove some optional features. 22260786Sps If you choose not to include some features in your version, you may 22360786Sps wish to edit the manual page less.man and the help page help.c 22460786Sps to remove the descriptions of the features which you are removing. 22560786Sps 22660786Sps5. Type "dmake" and watch the fun. 22760786Sps The standard OS-9 "make" will probably not work. If you don't 22860786Sps have dmake, you can get a copy from os9archive.rtsi.com. 22960786Sps 23060786Sps6. If the make succeeds, it will generate the programs "less" and 23160786Sps "lesskey" in your current directory. Test the generated programs. 23260786Sps 23360786Sps7. When satisfied that it works, if you wish to install it 23460786Sps in a public place, type "dmake install". 23560786Sps See step 6 of the Unix installation instructions for details 23660786Sps on how to change the default installation directories. 23760786Sps 23889019Sps======================================================================= 23989019SpsACKNOWLEDGMENTS: 24089019Sps Some versions of the less distribution are packaged using 24189019Sps Info-ZIP's compression utility. 24289019Sps Info-ZIP's software is free and can be obtained as source 24389019Sps code or executables from various anonymous-ftp sites, 24489019Sps including ftp.uu.net:/pub/archiving/zip. 245