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diff --git a/doc/zutils.info b/doc/zutils.info index 24f9bf4..9c27308 100644 --- a/doc/zutils.info +++ b/doc/zutils.info @@ -12,7 +12,7 @@ File: zutils.info, Node: Top, Next: Introduction, Up: (dir) Zutils Manual ************* -This manual is for Zutils (version 0.9, 11 January 2011). +This manual is for Zutils (version 1.0-rc6, 15 March 2013). * Menu: @@ -26,7 +26,7 @@ This manual is for Zutils (version 0.9, 11 January 2011). * Concept Index:: Index of concepts - Copyright (C) 2008, 2009, 2010, 2011 Antonio Diaz Diaz. + Copyright (C) 2008, 2009, 2010, 2011, 2012, 2013 Antonio Diaz Diaz. This manual is free documentation: you have unlimited permission to copy, distribute and modify it. @@ -41,12 +41,17 @@ Zutils is a collection of utilities able to deal with any combination of compressed and non-compressed files transparently. If any given file, including standard input, is compressed, its uncompressed content is used. Compressed files are decompressed on the fly; no temporary files -are created. These utilities are not wrapper scripts but safer and more -efficient C++ programs. In particular the `--recursive' option is very -efficient in those utilities supporting it. +are created. + + These utilities are not wrapper scripts but safer and more efficient +C++ programs. In particular the `--recursive' option is very efficient +in those utilities supporting it. The provided utilities are zcat, zcmp, zdiff, zgrep and ztest. -The supported compressors are bzip2, gzip, lzip and xz. +The supported formats are bzip2, gzip, lzip and xz. + + Zcat, zcmp, zdiff, and zgrep are improved replacements for the shell +scripts provided with GNU gzip. Ztest is unique to zutils. Numbers given as arguments to options (positions, sizes) may be @@ -74,10 +79,12 @@ Zcat copies each given file (`-' means standard input), to standard output. If any given file is compressed, its uncompressed content is used. If a given file does not exist, and its name does not end with one of the known extensions, zcat tries the compressed file names -corresponding to the supported compressors. If no files are specified, -data is read from standard input, decompressed if needed, and sent to -standard output. Data read from standard input must be of the same type; -all uncompressed or all compressed with the same compressor. +corresponding to the supported formats. + + If no files are specified, data is read from standard input, +decompressed if needed, and sent to standard output. Data read from +standard input must be of the same type; all uncompressed or all in the +same compression format. The format for running zcat is: @@ -111,6 +118,11 @@ Exit status is 0 if no errors occurred, 1 otherwise. `--show-ends' Print a `$' after the end of each line. +`--format=FMT' + Force the given compression format. Valid values for FMT are + `bz2', `gz', `lz' and `xz'. If this option is used, the exact file + name must be given. Other names won't be tried. + `-n' `--number' Number all output lines, starting with 1. The line count is @@ -161,13 +173,18 @@ fly; no temporary files are created. zcmp [OPTIONS] FILE1 [FILE2] -Compares FILE1 to FILE2. If FILE2 is omitted zcmp tries the following: -If FILE1 is compressed, compares FILE1 to the file with the -corresponding decompressed file name (removes the extension from FILE1). -If FILE1 is not compressed, compares FILE1 to the uncompressed contents -of FILE1.[bz2|gz|lz|xz] (the first one that is found). -If no suitable file is found, compares FILE1 to data read from standard -input. +This compares FILE1 to FILE2. If FILE2 is omitted zcmp tries the +following: + + 1. If FILE1 is compressed, compares FILE1 to the file with the + corresponding decompressed file name (removes the extension from + FILE1). + + 2. If FILE1 is not compressed, compares FILE1 to the uncompressed + contents of FILE1.[bz2|gz|lz|xz] (the first one that is found). + + 3. If no suitable file is found, compares FILE1 to data read from + standard input. An exit status of 0 means no differences were found, 1 means some differences were found, and 2 means trouble. @@ -188,6 +205,14 @@ differences were found, and 2 means trouble. a letter, and precede bytes larger than 127 with `M-' (which stands for "meta"). +`--format=[FMT1][,FMT2]' + Force the given compression formats. Any of FMT1 or FMT2 may be + omitted and the corresponding format will be automatically + detected. Valid values for FMT are `bz2', `gz', `lz' and `xz'. If + at least one format is specified with this option, the exact file + names of both FILE1 and FILE2 must be given. Other names won't be + tried. + `-i SIZE' `--ignore-initial=SIZE' Ignore any differences in the first SIZE bytes of the input files. @@ -231,13 +256,18 @@ temporary filenames instead of those specified. zdiff [OPTIONS] FILE1 [FILE2] -Compares FILE1 to FILE2. If FILE2 is omitted zdiff tries the following: -If FILE1 is compressed, compares FILE1 to the file with the -corresponding decompressed file name (removes the extension from FILE1). -If FILE1 is not compressed, compares FILE1 to the uncompressed contents -of FILE1.[bz2|gz|lz|xz] (the first one that is found). -If no suitable file is found, compares FILE1 to data read from standard -input. +This compares FILE1 to FILE2. If FILE2 is omitted zdiff tries the +following: + + 1. If FILE1 is compressed, compares FILE1 to the file with the + corresponding decompressed file name (removes the extension from + FILE1). + + 2. If FILE1 is not compressed, compares FILE1 to the uncompressed + contents of FILE1.[bz2|gz|lz|xz] (the first one that is found). + + 3. If no suitable file is found, compares FILE1 to data read from + standard input. An exit status of 0 means no differences were found, 1 means some differences were found, and 2 means trouble. @@ -279,6 +309,14 @@ differences were found, and 2 means trouble. `--ignore-tab-expansion' Ignore changes due to tab expansion. +`--format=[FMT1][,FMT2]' + Force the given compression formats. Any of FMT1 or FMT2 may be + omitted and the corresponding format will be automatically + detected. Valid values for FMT are `bz2', `gz', `lz' and `xz'. If + at least one format is specified with this option, the exact file + names of both FILE1 and FILE2 must be given. Other names won't be + tried. + `-i' `--ignore-case' Ignore case differences in file contents. @@ -326,10 +364,12 @@ on any combination of compressed and non-compressed files. If any given file is compressed, its uncompressed content is used. If a given file does not exist, and its name does not end with one of the known extensions, zgrep tries the compressed file names corresponding to the -supported compressors. If no files are specified, data is read from -standard input, decompressed if needed, and fed to grep. Data read from -standard input must be of the same type; all uncompressed or all -compressed with the same compressor. +supported formats. + + If no files are specified, data is read from standard input, +decompressed if needed, and fed to grep. Data read from standard input +must be of the same type; all uncompressed or all in the same +compression format. The format for running zgrep is: @@ -387,9 +427,15 @@ matches were found, and 2 means trouble. `--fixed-strings' Treat PATTERN as a set of newline-separated strings. +`--format=FMT' + Force the given compression format. Valid values for FMT are + `bz2', `gz', `lz' and `xz'. If this option is used, the exact file + name must be given. Other names won't be tried. + `-h' `--no-filename' - Suppress the prefixing filename on output. + Suppress the prefixing of filenames on output when multiple files + are searched. `-H' `--with-filename' @@ -459,16 +505,18 @@ File: zutils.info, Node: Ztest, Next: Problems, Prev: Zgrep, Up: Top Ztest verifies the integrity of the specified compressed files. Non-compressed files are ignored. If no files are specified, the integrity of compressed data read from standard input is verified. Data -read from standard input must be all compressed with the same -compressor. +read from standard input must be all in the same compression format. + + Note that some xz files lack integrity information, and therefore +can't be verified as reliably as the other formats can. The format for running ztest is: ztest [OPTIONS] [FILES] -The exit status is 0 if all files verify OK, 1 for environmental -problems (file not found, invalid flags, I/O errors, etc), 2 to indicate -a corrupt or invalid input file. +The exit status is 0 if all compressed files verify OK, 1 if +environmental problems (file not found, invalid flags, I/O errors, etc), +2 if any compressed file is corrupt or invalid. Ztest supports the following options: @@ -480,6 +528,11 @@ a corrupt or invalid input file. `--version' Print the version number of ztest on the standard output and exit. +`--format=FMT' + Force the given compression format. Valid values for FMT are + `bz2', `gz', `lz' and `xz'. If this option is used, all files not + in the given format will fail. + `-q' `--quiet' Quiet operation. Suppress all messages. @@ -531,13 +584,18 @@ Concept Index Tag Table: Node: Top224 -Node: Introduction992 -Node: Zcat2447 -Node: Zcmp4331 -Node: Zdiff6388 -Node: Zgrep8625 -Node: Ztest11392 -Node: Problems12475 -Node: Concept Index13004 +Node: Introduction1006 +Node: Zcat2593 +Node: Zcmp4679 +Node: Zdiff7165 +Node: Zgrep9831 +Node: Ztest12842 +Node: Problems14246 +Node: Concept Index14775 End Tag Table + + +Local Variables: +coding: iso-8859-15 +End: |