1 | p7zip 9.20.1
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2 | ==========
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3 |
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4 | Homepage : http://p7zip.sourceforge.net/
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5 |
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6 | p7zip is a port of the Windows programs 7z.exe and 7za.exe provided by 7-zip.
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7 |
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8 | 7-zip is a file archiver with the highest compression ratio.
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9 | Homepage : www.7-zip.org
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10 |
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11 | 7z uses plugins (7z.so and Codecs/Rar29.so) to handle archives.
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12 | 7za is a stand-alone executable.
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13 | 7za handles less archive formats than 7z.exe.
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14 | 7zr is a light stand-alone executable that supports only 7z/LZMA/BCJ/BCJ2.
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15 |
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16 | NEW:
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17 | 7zG : see GUI/readme.txt
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18 |
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19 | CAUTION :
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20 | ---------
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21 |
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22 | - FIRST : DO NOT USE the 7-zip format for backup purpose on Linux/Unix because :
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23 | - 7-zip does not store the owner/group of the file
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24 |
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25 | On Linux/Unix, in order to backup directories you must use tar !
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26 | to backup a directory : tar cf - directory | 7za a -si directory.tar.7z
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27 | to restore your backup : 7za x -so directory.tar.7z | tar xf -
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28 |
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29 | - if you want to send files and directories (not the owner of file)
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30 | to others Unix/MacOS/Windows users, you can use the 7-zip format.
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31 |
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32 | example : 7za a directory.7z directory
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33 |
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34 | do not use "-r" because this flag does not do what you think
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35 | do not use directory/* because of ".*" files
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36 | (example : "directory/*" does not match "directory/.profile")
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37 |
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38 |
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39 | BUILD :
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40 | -------
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41 |
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42 | If you have downloaded the "bin" package,
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43 | use directly the program bin/7za.
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44 | (tested on Redhat 9.0, Fedora 2, Mandrake 10.0, Debian 3.0)
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45 | As the program is statically linked, its should run on many x86 or amd64 linux.
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46 |
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47 | If you have downloaded the "source" package,
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48 |
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49 | According to your OS, copy makefile.linux,
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50 | makefile.freebsd, makefile.cygwin, ...
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51 | over makefile.machine
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52 |
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53 | Example : building 7za, 7z (with its plugins), 7zr and Client7z and passing the internal tests
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54 | cp makefile.linux_x86_asm_gcc_4 makefile.linux
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55 | make all_test
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56 |
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57 |
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58 | If you want to make a parallel build on a 4 cpu machine : make -j 4 TARGET
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59 |
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60 | If you have trouble, try : make -f makefile.oldmake TARGET
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61 |
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62 | make depend : to rebuild the makefile.depend
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63 | make clean : to clean all directories
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64 | make : to build bin/7za
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65 | make sfx : to build bin/7zCon.sfx (7za can now create SFX archive)
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66 | make 7z : to build bin/7z and its plugins :
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67 | - "bin/7z.so" (GNU LGPL + AES code license)
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68 | - "bin/Codecs/Rar29.so" (GNU LGPL + unRAR restriction)
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69 | make 7zr : to build bin/7zr
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70 | make all : to build bin/7za and bin/7zCon.sfx
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71 | make all2 : to build bin/7za, bin/7z (with its plugins) and bin/7zCon.sfx
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72 | make all3 : to build bin/7za, bin/7z (with its plugins), bin/7zr and bin/7zCon.sfx
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73 | make test : to test bin/7za (extracting, archiving, password ...)
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74 | make test_7z : to test bin/7z (extracting, archiving, password ...)
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75 | make test_7zr : to test bin/7zr (extracting, archiving, ...)
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76 |
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77 | make 7zG : to build bin/7zG and its plugins :
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78 | - "bin/7z.so" (GNU LGPL + AES code license)
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79 | - "bin/Codecs/Rar29.so" (GNU LGPL + unRAR restriction)
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80 | make test_7zG : to test bin/7zG (extracting, archiving, ...)
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81 |
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82 |
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83 | this procedure has been tested on :
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84 | - x86 CPU :
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85 | Linux - Debian 3.0 Stable
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86 | Linux - Ubuntu 10.10
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87 | MacOS 10.6.6
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88 |
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89 | - AMD64 CPU :
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90 | Linux - Ubuntu 10.10
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91 | MacOS 10.6.6
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92 |
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93 | - sparc CPU :
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94 | Solaris 8 (sparc) with gcc 2.95.2
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95 |
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96 | - powerpc CPU :
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97 | MacOS X 10.4 (ppc)
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98 |
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99 | Some older versions of p7zip were tested :
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100 | - x86 CPU :
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101 | DOS - (built with DJGPP, see http://blairdude.googlepages.com/p7zip )
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102 | Linux - Redhat 9.0 Standart
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103 | Linux - Fedora 2 (Redhat) (gcc 3.3.3 and gcc-3.4.1 with
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104 | stack-smashing protector from www.trl.ibm.com/projects/security/ssp/)
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105 | Linux - Mandrake 10.0 Official
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106 | Linux - Ubuntu 8.04
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107 | FreeBSD 5.2.1 (gcc 3.3.3)
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108 | MacOS 10.4.8
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109 | NetBSD
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110 | CYGWIN_NT-5.1 1.5.9(0.112/4/2) 2004-03-18 23:05 i686 Cygwin
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111 | Solaris 9 (x86) with gcc 3.3.2
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112 | Solaris 10 (x86)
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113 |
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114 | - alpha CPU :
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115 | Linux - Debian 3.0 (alpha) with gcc 2.95.4
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116 |
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117 | - AMD64 CPU :
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118 | Linux - SuSE 8 ES (AMD64 Opteron) with gcc 3.2.2
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119 | Linux - Fedora 4 (AMD64 Turion) with gcc 4.0.1
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120 | Linux - Ubuntu 8.10
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121 |
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122 | - Itanium CPU :
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123 | HP-UX B.11.31 U ia64 with aCC (HP C/aC++ B3910B A.06.14 [Feb 22 2007])
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124 |
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125 | - s390x CPU :
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126 | Linux - SUSE Enterprise Linux 10 - with gcc 4.1.2
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127 | ( only the 32bits built works, the 64bits built does not pass the tests )
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128 |
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129 | - sparc CPU :
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130 | Solaris 9 (sparc) with gcc 3.3.2
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131 |
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132 | - powerpc CPU :
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133 | MacOS X 10.1/darwin 5.5 with gcc 932.1 (gcc 2.95.2)
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134 | MacOS X 10.3 with XCode 1.5
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135 |
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136 | - openpower CPU :
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137 | Linux openpower-linux1 2.6.5-7.97-pseries64 (ppc64) with gcc 3.3.3
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138 |
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139 | - IBM :
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140 | AIX 5.3 with gcc 4.1.0
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141 |
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142 | - Tru64 :
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143 | OSF 5.1 with gcc 3.4.2
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144 |
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145 | - PA-RISC :
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146 | HP-UX 11.11 with aCC (HP ANSI C++ B3910B A.03.73)
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147 | HP-UX 11.11 with gcc 3.4.2 (7za and 7zr : OK, 7z : failed because of a buggy gcc for HP-UX,
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148 | plugins don't work because C++ constructors are not called !)
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149 |
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150 |
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151 | BUILD with cmake
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152 | ----------------
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153 | You can only build 7za.
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154 |
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155 | cd CPP/7zip/CMAKE
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156 |
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157 | edit generate.sh to choose your target
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158 |
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159 | ./generate.sh
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160 |
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161 | the cmake project for the target is in "CPP/7zip/CMAKE/Alone".
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162 |
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163 | For the target "Unix Makefiles", use "make" to compile
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164 |
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165 | For others target, use the IDE (CodeBlocks, KDevelop3, Eclipse CDT4)
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166 |
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167 | INSTALL :
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168 | ---------
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169 |
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170 | method 1
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171 | --------
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172 | - edit install.sh to change DEST_HOME
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173 | - ./install.sh : to install
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174 | Remark : you must be "root" to install 7za in the directory "/usr/local"
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175 |
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176 | method 2
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177 | --------
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178 | - 7za is a stand-alone program, you can put this program where you want.
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179 | example : cp bin/7za /usr/local/bin/7za
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180 |
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181 | - 7z needs its plugins. You must copy the file 7z, 7z.so
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182 | and the directory Codecs in the same destination directory.
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183 |
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184 | - if you want to be able to create SFX archive, copy bin/7zCon.sfx
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185 | to the directory where 7za or 7z can be found.
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186 |
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187 |
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188 | USAGE:
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189 | ------
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190 | Remark : you can replace 7za with 7z.
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191 |
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192 | 7za t archive.7z : tests files in the archive archive.7z
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193 | 7za l archive.7z : lists all files from archive archive.7z
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194 | 7za x archive.7z : extracts all files from archive archive.7z
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195 | to the current directory
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196 |
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197 | 7za a archive.7z file1 fileN : add files to the archive archive.7z
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198 |
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199 | 7za a archive.7z dir1 : add all files and subdirectories from directory "dir1" to archive archive.7z
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200 |
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201 | CAUTION : do not use the flag "-r" unless you know what you are doing ...
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202 |
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203 | 7za a -sfx archive.exe dir1 : add all files from directory "dir1" to SFX archive archive.exe
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204 | (Remark : SFX archive MUST end with ".exe")
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205 |
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206 | You can also add or extract files to/from .zip or .tar archives.
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207 | You can also compress/uncompress .gz or .bz2 files.
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208 |
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209 | 7za a -tzip archive.zip file file2 file3
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210 | 7za a -ttar archive.tar file
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211 | 7za a -tgzip file.gz file
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212 | 7za a -tbzip2 archive.bz2 file
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213 |
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214 | You can use password for archives:
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215 | 7za a -pmy_password archive.7z dir1
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216 |
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217 | For .7z archive only, you can enable archive header encryption with "-mhe"
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218 | 7za a -mhe=on -pmy_password archive.7z dir1
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219 |
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220 | For more, see the documentation of 7za.exe in DOCS/MANUAL directory
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221 | 7za a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on archive.7z dir1
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222 | adds all files from directory "dir1" to archive archive.7z
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223 | using "ultra settings".
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224 | -t7z : 7z archive
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225 | -m0=lzma : lzma method
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226 | -mx=9 : level of compression = 9 (Ultra)
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227 | -mfb=64 : number of fast bytes for LZMA = 64
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228 | -md=32m : dictionary size = 32 megabytes
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229 | -ms=on : solid archive = on
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230 |
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231 | To use the new codec "lzma2"
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232 | 7za a -m0=lzma2 archive.7z directory
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233 |
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234 |
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235 | BENCHMARKS :
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236 | ------------
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237 | 7za b : bench LZMA codec
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238 | 7z b -mm=crc : make internal crc check.
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239 |
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240 |
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241 | hugetlbfs (large pages)
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242 | ------------
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243 |
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244 | Using huges pages in Linux requires some preparations.
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245 | First, make sure your running kernel has support for hugetlbfs compiled in:
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246 |
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247 | ~$ grep hugetlbfs /proc/filesystems
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248 | nodev hugetlbfs
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249 |
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250 | You can view your current huge page configuration like this:
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251 |
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252 | ~$ grep Huge /proc/meminfo
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253 | HugePages_Total: 0
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254 | HugePages_Free: 0
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255 | HugePages_Rsvd: 0
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256 | HugePages_Surp: 0
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257 | Hugepagesize: 2048 kB
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258 |
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259 | In this case the size of a huge page is 2 MiB.
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260 | So, if you have 2 GiB of RAM and want to reserve 512 MiB for huge pages,
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261 | you would need 256 pages.
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262 |
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263 | Do the following as root:
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264 |
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265 | ~# echo 296 >/proc/sys/vm/nr_hugepages
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266 | ~# grep Huge /proc/meminfo
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267 | HugePages_Total: 296
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268 | HugePages_Free: 296
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269 | HugePages_Rsvd: 0
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270 | HugePages_Surp: 0
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271 | Hugepagesize: 2048 kB
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272 |
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273 | Finally, make access from user space possible:
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274 |
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275 | ~# mkdir /hugepages
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276 | ~# mount -t hugetlbfs -o rw,nosuid,nodev,noexec,noatime none /hugepages
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277 | ~# chmod 1777 /hugepages
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278 |
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279 | Option 1 : Now huge pages are configured.
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280 | In your shell, set the environment variable HUGETLB_PATH to the mount point:
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281 | ~$ export HUGETLB_PATH=/hugepages
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282 | or
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283 |
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284 | Option 2 : Let p7zip find out the first directory with the type "hugetlbfs"
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285 |
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286 |
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287 | To enable huge page use in p7zip, pass the '-slp' switch to it.
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288 | Ex: 7za -slp a t.7z dir
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289 |
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290 |
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291 |
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292 | If you want this to be a permanent setup :
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293 | - mkdir /hugepages
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294 |
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295 | - add an entry to your /etc/fstab so that when you reboot your computer,
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296 | your hugetlbfs will mount automatically :
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297 | hugetlbfs /hugepages hugetlbfs rw,nosuid,nodev,noexec,noatime 0 0
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298 |
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299 | - add this in your /etc/rc.local :
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300 | chmod 1777 /hugepages
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301 | echo 296 > /proc/sys/vm/nr_hugepages
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302 |
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303 | optional : export HUGETLB_PATH=/hugepages
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304 |
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305 | To enable huge page use in p7zip, pass the '-slp' switch to it : 7za -slp b
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306 |
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307 |
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308 | Remark : with current CPU : "7za -slp b" is not faster than "7za b".
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309 | If you want to see some speedup, compress at least 300MB
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310 | Ex : 7za -slp -mx=9 -a big_file.tar.7z big_file.tar
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311 |
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312 |
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313 | LICENSE :
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314 | ---------
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315 | please read DOCS/License.txt.
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316 |
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317 | LIMITATIONS from 7-zip :
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318 | ------------------------
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319 |
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320 | - does not support uid/gid for the .tar format (so, use tar on Unix)
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321 |
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322 | LIMITATIONS for Unix version only :
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323 | -----------------------------------
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324 |
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325 | - can handle properly UNICODE filenames only if the environment is UTF-8.
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326 | Example : export LANG=en_US.UTF-8 ; unset LC_CTYPE
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327 | Remark : see the possible values for LANG in the directory
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328 | - /usr/lib/locale : Fedora 2 / Solaris 8
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329 | - /usr/share/locale : OpenBSD / Debian / FreeBSD / MacOS X / Mandrake 10.1 / NetBSD
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330 |
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331 | On Linux, to display the available locales : locale -a
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332 |
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333 | p7zip relies on LC_CTYPE and then on LANG to convert name to/from UNICODE.
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334 | the command "locale" should display these environment variables.
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335 | you can also do "echo $LC_CTYPE" and "echo $LANG".
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336 |
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337 | If you do not plan to export your archive, you can use the flag "-no-utf16".
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338 | Usage :
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339 | 7za a -no-utf16 archive.7z dirOrFile1 ... dirOrFileN
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340 | 7za t -no-utf16 archive.7z
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341 | 7za l -no-utf16 archive.7z
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342 | 7za x -no-utf16 archive.7z
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343 |
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344 | - ignores Windows file access permissions (files are created with default permissions)
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345 |
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346 | see also TODO file.
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347 |
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348 | DEVELOPPER CORNER:
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349 | ------------------
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350 |
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351 | - WaitForMultipleObject has no equivalence on Unix.
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352 | - Events don't exist.
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353 | - sizeof(wchar_t) = 4 with GCC (2 with MS VC++)
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354 | - "FIXME" in source code indicates that you should add codes to better handle all cases.
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355 |
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356 | - "FIXED" in source code indicates that the original code has been changed to work in Unix environment.
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357 |
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358 | see also TODO file.
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