1 2 Less, version 436 3 4 This is the distribution of less, version 436, released 07 Jul 2009. 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 97 98======================================================================= 99INSTALLATION (MS-DOS systems only, 100 with Microsoft C, Borland C, or DJGPP) 101 1021. Move the distributed source to its own directory. 103 Depending on your compiler, you may need to convert the source 104 to have CR-LF rather than LF as line terminators. 105 1062. If you are using Microsoft C, rename MAKEFILE.DSU to MAKEFILE. 107 If you are using Borland C, rename MAKEFILE.DSB to MAKEFILE. 108 If you are using DJGPP, rename MAKEFILE.DSG to MAKEFILE. 109 1103. Look at MAKEFILE to make sure that the definitions for CC and LIBDIR 111 are correct. CC should be the name of your C compiler and 112 LIBDIR should be the directory where the C libraries reside (for 113 Microsoft C only). If these definitions need to be changed, you can 114 either modify the definitions directly in MAKEFILE, or set your 115 environment variables CC and/or LIBDIR to override the definitions 116 in MAKEFILE. 117 1184. If you wish, you may edit DEFINES.DS to remove some optional features. 119 If you choose not to include some features in your version, you may 120 wish to edit the manual page LESS.MAN and the help page HELP.C 121 to remove the descriptions of the features which you are removing. 122 1235. Run your "make" program and watch the fun. 124 If your "make" requires a flag to import environment variables, 125 you should use that flag. 126 If your compiler runs out of memory, try running "make -n >cmds.bat" 127 and then run cmds.bat. 128 1296. If the make succeeds, it will generate the programs "LESS.EXE" and 130 "LESSKEY.EXE" in your current directory. Test the generated programs. 131 1327. When satisfied that it works, you may wish to install LESS.EXE and 133 LESSKEY.EXE in a directory which is included in your PATH. 134 135 136 137======================================================================= 138INSTALLATION (Windows-95, Windows-98 and Windows-NT systems only, 139 with Borland C or Microsoft Visual C++) 140 1411. Move the distributed source to its own directory. 142 1432. If you are using Borland C, rename Makefile.wnb to Makefile. 144 If you are using Microsoft Visual C++, rename Makefile.wnm to Makefile. 145 1463. Check the Makefile to make sure the definitions look ok. 147 1484. If you wish, you may edit defines.wn to remove some optional features. 149 If you choose not to include some features in your version, you may 150 wish to edit the manual page less.man and the help page help.c 151 to remove the descriptions of the features which you are removing. 152 1535. Type "make" and watch the fun. 154 1556. If the make succeeds, it will generate the programs "less.exe" and 156 "lesskey.exe" in your current directory. Test the generated programs. 157 1587. When satisfied that it works, if you wish to install it 159 in a public place, type "make install". 160 See step 6 of the Unix installation instructions for details 161 on how to change the default installation directories. 162 163 164 165======================================================================= 166INSTALLATION (OS/2 systems only, 167 with EMX C) 168 1691. Move the distributed source to its own directory. 170 1712. Rename Makefile.o2e to Makefile. 172 1733. Check the Makefile to make sure the definitions look ok. 174 1754. If you wish, you may edit defines.o2 to remove some optional features. 176 If you choose not to include some features in your version, you may 177 wish to edit the manual page less.man and the help page help.c 178 to remove the descriptions of the features which you are removing. 179 1805. Type "make" and watch the fun. 181 1826. If the make succeeds, it will generate the programs "less.exe" and 183 "lesskey.exe" in your current directory. Test the generated programs. 184 1857. Make sure you have the emx runtime installed. You need the emx DLLs 186 emx.dll and emxlibcs.dll and also the termcap database, termcap.dat. 187 Make sure you have termcap.dat either in the default location or 188 somewhere in a directory listed in the PATH or INIT environment 189 variables. 190 1918. When satisfied that it works, you may wish to install less.exe, 192 lesskey.exe and scrsize.exe in a directory which is included in 193 your PATH. scrsize.exe is required only if you use a terminal 194 emulator such as xterm or rxvt. 195 196 197 198======================================================================= 199INSTALLATION (OS-9 systems only, 200 with Microware C or Ultra C) 201 2021. Move the distributed source to its own directory. 203 2042. If you are using Microware C, rename Makefile.o9c to Makefile. 205 If you are using Ultra C, rename Makefile.o9u to Makefile. 206 2073. Check the Makefile to make sure the definitions look ok. 208 2094. If you wish, you may edit defines.o9 to remove some optional features. 210 If you choose not to include some features in your version, you may 211 wish to edit the manual page less.man and the help page help.c 212 to remove the descriptions of the features which you are removing. 213 2145. Type "dmake" and watch the fun. 215 The standard OS-9 "make" will probably not work. If you don't 216 have dmake, you can get a copy from os9archive.rtsi.com. 217 2186. If the make succeeds, it will generate the programs "less" and 219 "lesskey" in your current directory. Test the generated programs. 220 2217. When satisfied that it works, if you wish to install it 222 in a public place, type "dmake install". 223 See step 6 of the Unix installation instructions for details 224 on how to change the default installation directories. 225 226======================================================================= 227ACKNOWLEDGMENTS: 228 Some versions of the less distribution are packaged using 229 Info-ZIP's compression utility. 230 Info-ZIP's software is free and can be obtained as source 231 code or executables from various anonymous-ftp sites, 232 including ftp.uu.net:/pub/archiving/zip. 233