1 2 Less, version 458 3 4 This is the distribution of less, version 458, released 04 Apr 2013. 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. 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 none No regular expressions, only simple string matching. 56 --with-secure 57 Builds a "secure" version of less, with some features disabled 58 to prevent users from viewing other files, accessing shell 59 commands, etc. 60 61 623. It is a good idea to look over the generated Makefile and defines.h 63 and make sure they look ok. If you know of any peculiarities of 64 your system that configure might not have detected, you may fix the 65 Makefile now. Take particular notice of the list of "terminal" 66 libraries in the LIBS definition in the Makefile; these may need 67 to be edited. The terminal libraries will be some subset of 68 -lncurses -lcurses -ltermcap -ltermlib 69 70 If you wish, you may edit defines.h to remove some optional features. 71 If you choose not to include some features in your version, you may 72 wish to edit the manual page "less.nro" and the help page "less.hlp" 73 to remove the descriptions of the features which you are removing. 74 If you edit less.hlp, you should run "make -f Makefile.aut help.c". 75 764. Type "make" and watch the fun. 77 785. If the make succeeds, it will generate the programs "less", 79 "lesskey" and "lessecho" in your current directory. Test the 80 generated programs. 81 826. When satisfied that it works, if you wish to install it 83 in a public place, type "make install". 84 85 The default install destinations are: 86 Executables (less, lesskey, lessecho) in /usr/local/bin 87 Documentation (less.nro, lesskey.nro) in /usr/local/man/man1 88 If you want to install any of these files elsewhere, define 89 bindir and/or mandir to the appropriate directories. 90 91If you have any problems building or running "less", suggestions, 92complaints, etc., you may mail to bug-less@gnu.org. 93 94Note to hackers: comments noting possible improvements are enclosed 95in double curly brackets {{ like this }}. 96 97(Note that the above note was originally written at a time when 98"hackers" most commonly meant "enthusiastic and dedicated computer 99programmers", not "persons who attempt to circumvent computer security".) 100 101 102 103======================================================================= 104INSTALLATION (MS-DOS systems only, 105 with Microsoft C, Borland C, or DJGPP) 106 1071. Move the distributed source to its own directory. 108 Depending on your compiler, you may need to convert the source 109 to have CR-LF rather than LF as line terminators. 110 1112. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 112 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 113 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 114 1153. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 116 are correct. CC should be the name of your C compiler and 117 LIBDIR should be the directory where the C libraries reside (for 118 Microsoft C only). If these definitions need to be changed, you can 119 either modify the definitions directly in MAKEFILE, or set your 120 environment variables CC and/or LIBDIR to override the definitions 121 in MAKEFILE. 122 1234. If you wish, you may edit DEFINES.DS to remove some optional features. 124 If you choose not to include some features in your version, you may 125 wish to edit the manual page LESS.MAN and the help page HELP.C 126 to remove the descriptions of the features which you are removing. 127 1285. Run your "make" program and watch the fun. 129 If your "make" requires a flag to import environment variables, 130 you should use that flag. 131 If your compiler runs out of memory, try running "make -n >cmds.bat" 132 and then run cmds.bat. 133 1346. If the make succeeds, it will generate the programs "LESS.EXE" and 135 "LESSKEY.EXE" in your current directory. Test the generated programs. 136 1377. When satisfied that it works, you may wish to install LESS.EXE and 138 LESSKEY.EXE in a directory which is included in your PATH. 139 140 141 142======================================================================= 143INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 144 with Borland C or Microsoft Visual C++) 145 1461. Move the distributed source to its own directory. 147 1482. If you are using Borland C, rename Makefile.wnb to Makefile. 149 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 150 1513. Check the Makefile to make sure the definitions look ok. 152 1534. If you wish, you may edit defines.wn to remove some optional features. 154 If you choose not to include some features in your version, you may 155 wish to edit the manual page less.man and the help page help.c 156 to remove the descriptions of the features which you are removing. 157 1585. Type "make" and watch the fun. 159 1606. If the make succeeds, it will generate the programs "less.exe" and 161 "lesskey.exe" in your current directory. Test the generated programs. 162 1637. When satisfied that it works, if you wish to install it 164 in a public place, type "make install". 165 See step 6 of the Unix installation instructions for details 166 on how to change the default installation directories. 167 168 169 170======================================================================= 171INSTALLATION (OS/2 systems only, 172 with EMX C) 173 1741. Move the distributed source to its own directory. 175 1762. Rename Makefile.o2e to Makefile. 177 1783. Check the Makefile to make sure the definitions look ok. 179 1804. If you wish, you may edit defines.o2 to remove some optional features. 181 If you choose not to include some features in your version, you may 182 wish to edit the manual page less.man and the help page help.c 183 to remove the descriptions of the features which you are removing. 184 1855. Type "make" and watch the fun. 186 1876. If the make succeeds, it will generate the programs "less.exe" and 188 "lesskey.exe" in your current directory. Test the generated programs. 189 1907. Make sure you have the emx runtime installed. You need the emx DLLs 191 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 192 Make sure you have termcap.dat either in the default location or 193 somewhere in a directory listed in the PATH or INIT environment 194 variables. 195 1968. When satisfied that it works, you may wish to install less.exe, 197 lesskey.exe and scrsize.exe in a directory which is included in 198 your PATH. scrsize.exe is required only if you use a terminal 199 emulator such as xterm or rxvt. 200 201 202 203======================================================================= 204INSTALLATION (OS-9 systems only, 205 with Microware C or Ultra C) 206 2071. Move the distributed source to its own directory. 208 2092. If you are using Microware C, rename Makefile.o9c to Makefile. 210 If you are using Ultra C, rename Makefile.o9u to Makefile. 211 2123. Check the Makefile to make sure the definitions look ok. 213 2144. If you wish, you may edit defines.o9 to remove some optional features. 215 If you choose not to include some features in your version, you may 216 wish to edit the manual page less.man and the help page help.c 217 to remove the descriptions of the features which you are removing. 218 2195. Type "dmake" and watch the fun. 220 The standard OS-9 "make" will probably not work. If you don't 221 have dmake, you can get a copy from os9archive.rtsi.com. 222 2236. If the make succeeds, it will generate the programs "less" and 224 "lesskey" in your current directory. Test the generated programs. 225 2267. When satisfied that it works, if you wish to install it 227 in a public place, type "dmake install". 228 See step 6 of the Unix installation instructions for details 229 on how to change the default installation directories. 230 231======================================================================= 232ACKNOWLEDGMENTS: 233 Some versions of the less distribution are packaged using 234 Info-ZIP's compression utility. 235 Info-ZIP's software is free and can be obtained as source 236 code or executables from various anonymous-ftp sites, 237 including ftp.uu.net:/pub/archiving/zip. 238