1 2 Less, version 444 3 4 This is the distribution of less, version 444, released 09 Jun 2011. 5 This program is part of the GNU project (http://www.gnu.org). 6 7 This program is free software. You may redistribute it and/or 8 modify it under the terms of either: 9 10 1. The GNU General Public License, as published by the Free 11 Software Foundation; either version 3, or (at your option) any 12 later version. A copy of this license is in the file COPYING. 13 or 14 2. The Less License, in the file LICENSE. 15 16 Please report any problems to bug-less@gnu.org or markn@greenwoodsoftware.com. 17 See http://www.greenwoodsoftware.com/less for the latest info. 18 19========================================================================= 20 21This is the distribution of "less", a paginator similar to "more" or "pg". 22 23The formatted manual page is in less.man. 24The manual page nroff source is in less.nro. 25Major changes made since the last posted version are in NEWS. 26 27======================================================================= 28INSTALLATION (Unix systems only): 29 301. Move the distributed source to its own directory and unpack it, 31 if you have not already done so. 32 332. Type "sh configure". 34 This will generate a Makefile and a defines.h. 35 Warning: if you have a GNU sed, make sure it is version 2.05 or later. 36 37 The file INSTALL describes the usage of the configure program in 38 general. In addition, these options to configure are supported: 39 40 --with-editor=program 41 Specifies the default editor program used by the "v" command. 42 The default is "vi". 43 44 --with-regex=lib 45 Specifies the regular expression library used by less for pattern 46 matching. The default is "auto", which means the configure program 47 finds a regular expression library automatically. Other values are: 48 posix Use the POSIX-compatible regcomp. 49 pcre Use the PCRE library. 50 regcmp Use the regcmp library. 51 re_comp Use the re_comp library. 52 regcomp Use the V8-compatible regcomp. 53 regcomp-local Use Henry Spencer's V8-compatible regcomp 54 (source is supplied with less). 55 --with-secure 56 Builds a "secure" version of less, with some features disabled 57 to prevent users from viewing other files, accessing shell 58 commands, etc. 59 60 613. It is a good idea to look over the generated Makefile and defines.h 62 and make sure they look ok. If you know of any peculiarities of 63 your system that configure might not have detected, you may fix the 64 Makefile now. Take particular notice of the list of "terminal" 65 libraries in the LIBS definition in the Makefile; these may need 66 to be edited. The terminal libraries will be some subset of 67 -lncurses -lcurses -ltermcap -ltermlib 68 69 If you wish, you may edit defines.h to remove some optional features. 70 If you choose not to include some features in your version, you may 71 wish to edit the manual page "less.nro" and the help page "less.hlp" 72 to remove the descriptions of the features which you are removing. 73 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 74 754. Type "make" and watch the fun. 76 775. If the make succeeds, it will generate the programs "less", 78 "lesskey" and "lessecho" in your current directory. Test the 79 generated programs. 80 816. When satisfied that it works, if you wish to install it 82 in a public place, type "make install". 83 84 The default install destinations are: 85 Executables (less, lesskey, lessecho) in /usr/local/bin 86 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 87 If you want to install any of these files elsewhere, define 88 bindir and/or mandir to the appropriate directories. 89 90If you have any problems building or running "less", suggestions, 91complaints, etc., you may mail to the author at markn@greenwoodsoftware.com. 92 93Note to hackers: comments noting possible improvements are enclosed 94in double curly brackets {{ like this }}. 95 96(Note that the above note was originally written at a time when 97"hackers" most commonly meant "enthusiastic and dedicated computer 98programmers", not "persons who attempt to circumvent computer security".) 99 100 101 102======================================================================= 103INSTALLATION (MS-DOS systems only, 104 with Microsoft C, Borland C, or DJGPP) 105 1061. Move the distributed source to its own directory. 107 Depending on your compiler, you may need to convert the source 108 to have CR-LF rather than LF as line terminators. 109 1102. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 111 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 112 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 113 1143. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 115 are correct. CC should be the name of your C compiler and 116 LIBDIR should be the directory where the C libraries reside (for 117 Microsoft C only). If these definitions need to be changed, you can 118 either modify the definitions directly in MAKEFILE, or set your 119 environment variables CC and/or LIBDIR to override the definitions 120 in MAKEFILE. 121 1224. If you wish, you may edit DEFINES.DS to remove some optional features. 123 If you choose not to include some features in your version, you may 124 wish to edit the manual page LESS.MAN and the help page HELP.C 125 to remove the descriptions of the features which you are removing. 126 1275. Run your "make" program and watch the fun. 128 If your "make" requires a flag to import environment variables, 129 you should use that flag. 130 If your compiler runs out of memory, try running "make -n >cmds.bat" 131 and then run cmds.bat. 132 1336. If the make succeeds, it will generate the programs "LESS.EXE" and 134 "LESSKEY.EXE" in your current directory. Test the generated programs. 135 1367. When satisfied that it works, you may wish to install LESS.EXE and 137 LESSKEY.EXE in a directory which is included in your PATH. 138 139 140 141======================================================================= 142INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 143 with Borland C or Microsoft Visual C++) 144 1451. Move the distributed source to its own directory. 146 1472. If you are using Borland C, rename Makefile.wnb to Makefile. 148 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 149 1503. Check the Makefile to make sure the definitions look ok. 151 1524. If you wish, you may edit defines.wn to remove some optional features. 153 If you choose not to include some features in your version, you may 154 wish to edit the manual page less.man and the help page help.c 155 to remove the descriptions of the features which you are removing. 156 1575. Type "make" and watch the fun. 158 1596. If the make succeeds, it will generate the programs "less.exe" and 160 "lesskey.exe" in your current directory. Test the generated programs. 161 1627. When satisfied that it works, if you wish to install it 163 in a public place, type "make install". 164 See step 6 of the Unix installation instructions for details 165 on how to change the default installation directories. 166 167 168 169======================================================================= 170INSTALLATION (OS/2 systems only, 171 with EMX C) 172 1731. Move the distributed source to its own directory. 174 1752. Rename Makefile.o2e to Makefile. 176 1773. Check the Makefile to make sure the definitions look ok. 178 1794. If you wish, you may edit defines.o2 to remove some optional features. 180 If you choose not to include some features in your version, you may 181 wish to edit the manual page less.man and the help page help.c 182 to remove the descriptions of the features which you are removing. 183 1845. Type "make" and watch the fun. 185 1866. If the make succeeds, it will generate the programs "less.exe" and 187 "lesskey.exe" in your current directory. Test the generated programs. 188 1897. Make sure you have the emx runtime installed. You need the emx DLLs 190 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 191 Make sure you have termcap.dat either in the default location or 192 somewhere in a directory listed in the PATH or INIT environment 193 variables. 194 1958. When satisfied that it works, you may wish to install less.exe, 196 lesskey.exe and scrsize.exe in a directory which is included in 197 your PATH. scrsize.exe is required only if you use a terminal 198 emulator such as xterm or rxvt. 199 200 201 202======================================================================= 203INSTALLATION (OS-9 systems only, 204 with Microware C or Ultra C) 205 2061. Move the distributed source to its own directory. 207 2082. If you are using Microware C, rename Makefile.o9c to Makefile. 209 If you are using Ultra C, rename Makefile.o9u to Makefile. 210 2113. Check the Makefile to make sure the definitions look ok. 212 2134. If you wish, you may edit defines.o9 to remove some optional features. 214 If you choose not to include some features in your version, you may 215 wish to edit the manual page less.man and the help page help.c 216 to remove the descriptions of the features which you are removing. 217 2185. Type "dmake" and watch the fun. 219 The standard OS-9 "make" will probably not work. If you don't 220 have dmake, you can get a copy from os9archive.rtsi.com. 221 2226. If the make succeeds, it will generate the programs "less" and 223 "lesskey" in your current directory. Test the generated programs. 224 2257. When satisfied that it works, if you wish to install it 226 in a public place, type "dmake install". 227 See step 6 of the Unix installation instructions for details 228 on how to change the default installation directories. 229 230======================================================================= 231ACKNOWLEDGMENTS: 232 Some versions of the less distribution are packaged using 233 Info-ZIP's compression utility. 234 Info-ZIP's software is free and can be obtained as source 235 code or executables from various anonymous-ftp sites, 236 including ftp.uu.net:/pub/archiving/zip. 237