Adding upstream version 0.8.
Signed-off-by: Daniel Baumann <daniel@debian.org>
This commit is contained in:
parent
7877117516
commit
056171c0b2
GPG key ID:
FBB4F0E80A80222F
32 changed files with 3798 additions and 1551 deletions
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@ -5,8 +5,8 @@
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@finalout
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@c %**end of header
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@set UPDATED 1 December 2009
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@set VERSION 0.8-rc1
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@set UPDATED 15 November 2010
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@set VERSION 0.8
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@dircategory Data Compression
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@direntry
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@ -24,7 +24,9 @@
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@vskip 0pt plus 1filll
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@end titlepage
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@ifnothtml
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@contents
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@end ifnothtml
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@node Top
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@top
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@ -32,17 +34,18 @@
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This manual is for Zutils (version @value{VERSION}, @value{UPDATED}).
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|
||||
@menu
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||||
* Introduction:: Purpose and features of zutils
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* Zcat:: Concatenating compressed files
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||||
* Zcmp/Zdiff:: Comparing compressed files
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||||
* Zgrep:: Searching inside compressed files
|
||||
* Ztest:: Testing integrity of compressed files
|
||||
* Problems:: Reporting bugs
|
||||
* Concept Index:: Index of concepts
|
||||
* Introduction:: Purpose and features of zutils
|
||||
* Zcat:: Concatenating compressed files
|
||||
* Zcmp:: Comparing compressed files byte by byte
|
||||
* Zdiff:: Comparing compressed files line by line
|
||||
* Zgrep:: Searching inside compressed files
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||||
* Ztest:: Testing integrity of compressed files
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||||
* Problems:: Reporting bugs
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||||
* Concept Index:: Index of concepts
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||||
@end menu
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||||
|
||||
@sp 1
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||||
Copyright @copyright{} 2008, 2009 Antonio Diaz Diaz.
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Copyright @copyright{} 2008, 2009, 2010 Antonio Diaz Diaz.
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This manual is free documentation: you have unlimited permission
|
||||
to copy, distribute and modify it.
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@ -52,148 +55,443 @@ to copy, distribute and modify it.
|
|||
@chapter Introduction
|
||||
@cindex introduction
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||||
|
||||
Zutils is a collection of utilities for dealing with any combination of
|
||||
compressed and non-compressed files transparently. The supported
|
||||
compressors are bzip2, gzip, lzip and xz.
|
||||
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 @samp{--recursive} option is
|
||||
very efficient in those utilities supporting it.
|
||||
|
||||
The currently provided utilities are zcat, zcmp, zdiff, zegrep, zfgrep,
|
||||
zgrep and ztest.
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||||
@noindent
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||||
The provided utilities are zcat, zcmp, zdiff, zgrep and ztest.@*
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||||
The supported compressors are bzip2, gzip, lzip and xz.
|
||||
|
||||
@sp 1
|
||||
Numbers given as arguments to options (positions, sizes) may be followed
|
||||
by a multiplier and an optional @samp{B} for "byte".
|
||||
|
||||
Table of SI and binary prefixes (unit multipliers):
|
||||
|
||||
@multitable {Prefix} {kilobyte (10^3 = 1000)} {|} {Prefix} {kibibyte (2^10 = 1024)}
|
||||
@item Prefix @tab Value @tab | @tab Prefix @tab Value
|
||||
@item k @tab kilobyte (10^3 = 1000) @tab | @tab Ki @tab kibibyte (2^10 = 1024)
|
||||
@item M @tab megabyte (10^6) @tab | @tab Mi @tab mebibyte (2^20)
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||||
@item G @tab gigabyte (10^9) @tab | @tab Gi @tab gibibyte (2^30)
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||||
@item T @tab terabyte (10^12) @tab | @tab Ti @tab tebibyte (2^40)
|
||||
@item P @tab petabyte (10^15) @tab | @tab Pi @tab pebibyte (2^50)
|
||||
@item E @tab exabyte (10^18) @tab | @tab Ei @tab exbibyte (2^60)
|
||||
@item Z @tab zettabyte (10^21) @tab | @tab Zi @tab zebibyte (2^70)
|
||||
@item Y @tab yottabyte (10^24) @tab | @tab Yi @tab yobibyte (2^80)
|
||||
@end multitable
|
||||
|
||||
|
||||
@node Zcat
|
||||
@chapter Zcat
|
||||
@cindex zcat
|
||||
|
||||
Zcat is a wrapper script around the cat command that allows transparent
|
||||
concatenation of 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, zcat tries the compressed file names
|
||||
Zcat copies each given file (@samp{-} 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
|
||||
stdout. Data read from standard input must be of the same type; all
|
||||
uncompressed or all compressed with the same compressor.
|
||||
standard output. Data read from standard input must be of the same type;
|
||||
all uncompressed or all compressed with the same compressor.
|
||||
|
||||
The format for running zcat is:
|
||||
|
||||
@example
|
||||
zcat [@var{options}] [@var{cat_options}] [@var{files}]
|
||||
zcat [@var{options}] [@var{files}]
|
||||
@end example
|
||||
|
||||
@noindent
|
||||
@var{cat_options} are passed directly to cat. The exit status from cat
|
||||
is preserved.
|
||||
Exit status is 0 if no errors occurred, 1 otherwise.
|
||||
|
||||
Zcat supports the following options:
|
||||
|
||||
@table @samp
|
||||
@item --help
|
||||
@itemx -h
|
||||
@item -h
|
||||
@itemx --help
|
||||
Print an informative help message describing the options and exit.
|
||||
|
||||
@item --version
|
||||
@itemx -V
|
||||
@item -V
|
||||
@itemx --version
|
||||
Print the version number of zcat on the standard output and exit.
|
||||
|
||||
@item --recursive
|
||||
@itemx -r
|
||||
@item -A
|
||||
@itemx --show-all
|
||||
Equivalent to @samp{-vET}.
|
||||
|
||||
@item -b
|
||||
@itemx --number-nonblank
|
||||
Number all nonblank output lines, starting with 1. The line count is
|
||||
unlimited.
|
||||
|
||||
@item -e
|
||||
Equivalent to @samp{-vE}.
|
||||
|
||||
@item -E
|
||||
@itemx --show-ends
|
||||
Print a @samp{$} after the end of each line.
|
||||
|
||||
@item -n
|
||||
@itemx --number
|
||||
Number all output lines, starting with 1. The line count is unlimited.
|
||||
|
||||
@item -q
|
||||
@itemx --quiet
|
||||
Quiet operation. Suppress all messages.
|
||||
|
||||
@item -r
|
||||
@itemx --recursive
|
||||
Operate recursively on directories.
|
||||
|
||||
@item -s
|
||||
@itemx --squeeze-blank
|
||||
Replace multiple adjacent blank lines with a single blank line.
|
||||
|
||||
@item -t
|
||||
Equivalent to @samp{-vT}.
|
||||
|
||||
@item -T
|
||||
@itemx --show-tabs
|
||||
Print TAB characters as @samp{^I}.
|
||||
|
||||
@item -v
|
||||
@itemx --show-nonprinting
|
||||
Print control characters except for LF (newline) and TAB using @samp{^}
|
||||
notation and precede characters larger than 127 with @samp{M-} (which
|
||||
stands for "meta").
|
||||
|
||||
@item --verbose
|
||||
Verbose mode. Show error messages.
|
||||
|
||||
@end table
|
||||
|
||||
|
||||
@node Zcmp/Zdiff
|
||||
@chapter Zcmp/Zdiff
|
||||
@node Zcmp
|
||||
@chapter Zcmp
|
||||
@cindex zcmp
|
||||
@cindex zdiff
|
||||
|
||||
Zdiff is a wrapper script around the diff and cmp commands that allows
|
||||
transparent comparison of any combination of compressed and
|
||||
non-compressed files. If any given file is compressed, its uncompressed
|
||||
content is used.
|
||||
Zcmp compares two files (@samp{-} means standard input), and if they
|
||||
differ, tells the first byte and line number where they differ. Bytes
|
||||
and lines are numbered starting with 1. If any given file is compressed,
|
||||
its uncompressed content is used. Compressed files are decompressed on
|
||||
the fly; no temporary files are created.
|
||||
|
||||
The format for running zcmp is:
|
||||
|
||||
@example
|
||||
zcmp [@var{options}] @var{file1} [@var{file2}]
|
||||
@end example
|
||||
|
||||
@noindent
|
||||
Zcmp is a shortcut for @samp{zdiff --cmp}
|
||||
Compares @var{file1} to @var{file2}. If @var{file2} is omitted zcmp
|
||||
tries the following:@*
|
||||
If @var{file1} is compressed, compares @var{file1} to the file with the
|
||||
corresponding decompressed file name (removes the extension from
|
||||
@var{file1}).@*
|
||||
If @var{file1} is not compressed, compares @var{file1} to the
|
||||
uncompressed contents of @var{file1}.[bz2|gz|lz|xz] (the first one that
|
||||
is found).@*
|
||||
If no suitable file is found, compares @var{file1} to data read from
|
||||
standard input.
|
||||
|
||||
@noindent
|
||||
An exit status of 0 means no differences were found, 1 means some
|
||||
differences were found, and 2 means trouble.
|
||||
|
||||
Zcmp supports the following options:
|
||||
|
||||
@table @samp
|
||||
@item -h
|
||||
@itemx --help
|
||||
Print an informative help message describing the options and exit.
|
||||
|
||||
@item -V
|
||||
@itemx --version
|
||||
Print the version number of zcmp on the standard output and exit.
|
||||
|
||||
@item -b
|
||||
@itemx --print-bytes
|
||||
Print the differing bytes. Print control bytes as a @samp{^} followed by
|
||||
a letter, and precede bytes larger than 127 with @samp{M-} (which stands
|
||||
for "meta").
|
||||
|
||||
@item -i @var{size}
|
||||
@itemx --ignore-initial=@var{size}
|
||||
Ignore any differences in the first @var{size} bytes of the input files.
|
||||
Treat files with fewer than @var{size} bytes as if they were empty. If
|
||||
@var{size} is in the form @samp{@var{size1},@var{size2}}, ignore the
|
||||
first @var{size1} bytes of the first input file and the first
|
||||
@var{size2} bytes of the second input file.
|
||||
|
||||
@item -l
|
||||
@itemx -v
|
||||
@itemx --list
|
||||
@itemx --verbose
|
||||
Print the byte numbers (in decimal) and values (in octal) of all
|
||||
differing bytes.
|
||||
|
||||
@item -n @var{count}
|
||||
@itemx --bytes=@var{count}
|
||||
Compare at most @var{count} input bytes.
|
||||
|
||||
@item -q
|
||||
@itemx -s
|
||||
@itemx --quiet
|
||||
@itemx --silent
|
||||
Do not print anything; only return an exit status indicating whether the
|
||||
files differ.
|
||||
|
||||
@end table
|
||||
|
||||
|
||||
@node Zdiff
|
||||
@chapter Zdiff
|
||||
@cindex zdiff
|
||||
|
||||
Zdiff compares two files (@samp{-} means standard input), and if they
|
||||
differ, shows the differences line by line. If any given file is
|
||||
compressed, its uncompressed content is used. Zdiff is a front end to
|
||||
the diff program and has the limitation that messages from diff refer to
|
||||
temporary filenames instead of those specified.
|
||||
|
||||
The format for running zdiff is:
|
||||
|
||||
@example
|
||||
zdiff [@var{options}] [@var{diff_options}] @var{file1} [@var{file2}]
|
||||
zdiff [@var{options}] @var{file1} [@var{file2}]
|
||||
@end example
|
||||
|
||||
@noindent
|
||||
Compares @var{file1} to @var{file2}. If @var{file2} is omitted and
|
||||
@var{file1} is compressed, compares @var{file1} to the file with the
|
||||
Compares @var{file1} to @var{file2}. If @var{file2} is omitted zdiff
|
||||
tries the following:@*
|
||||
If @var{file1} is compressed, compares @var{file1} to the file with the
|
||||
corresponding decompressed file name (removes the extension from
|
||||
@var{file1}). If @var{file2} is omitted and @var{file1} is not
|
||||
compressed, compares @var{file1} to the uncompressed contents of
|
||||
@var{file1}.[bz2|gz|lz|xz] (the first one that is found).
|
||||
@var{diff_options} are passed directly to diff or cmp. The exit status
|
||||
from diff or cmp is preserved.
|
||||
@var{file1}).@*
|
||||
If @var{file1} is not compressed, compares @var{file1} to the
|
||||
uncompressed contents of @var{file1}.[bz2|gz|lz|xz] (the first one that
|
||||
is found).@*
|
||||
If no suitable file is found, compares @var{file1} to data read from
|
||||
standard input.
|
||||
|
||||
@noindent
|
||||
An exit status of 0 means no differences were found, 1 means some
|
||||
differences were found, and 2 means trouble.
|
||||
|
||||
Zdiff supports the following options:
|
||||
|
||||
@table @samp
|
||||
@item --help
|
||||
@itemx -h
|
||||
@item -h
|
||||
@itemx --help
|
||||
Print an informative help message describing the options and exit.
|
||||
|
||||
@item --version
|
||||
@itemx -V
|
||||
@item -V
|
||||
@itemx --version
|
||||
Print the version number of zdiff on the standard output and exit.
|
||||
|
||||
@item --diff
|
||||
Use diff to compare files (default).
|
||||
@item -a
|
||||
@itemx --text
|
||||
Treat all files as text.
|
||||
|
||||
@item --cmp
|
||||
Use cmp to compare files.
|
||||
@item -b
|
||||
@itemx --ignore-space-change
|
||||
Ignore changes in the amount of white space.
|
||||
|
||||
@item -B
|
||||
@itemx --ignore-blank-lines
|
||||
Ignore changes whose lines are all blank.
|
||||
|
||||
@itemx -c
|
||||
Use the context output format.
|
||||
|
||||
@item -C @var{n}
|
||||
@itemx --context=@var{n}
|
||||
Same as -c but use @var{n} lines of context.
|
||||
|
||||
@item -d
|
||||
@itemx --minimal
|
||||
Try hard to find a smaller set of changes.
|
||||
|
||||
@item -E
|
||||
@itemx --ignore-tab-expansion
|
||||
Ignore changes due to tab expansion.
|
||||
|
||||
@item -i
|
||||
@itemx --ignore-case
|
||||
Ignore case differences in file contents.
|
||||
|
||||
@item -p
|
||||
@itemx --show-c-function
|
||||
Show which C function each change is in.
|
||||
|
||||
@item -q
|
||||
@itemx --brief
|
||||
Output only whether files differ.
|
||||
|
||||
@item -s
|
||||
@itemx --report-identical-files
|
||||
Report when two files are identical.
|
||||
|
||||
@item -t
|
||||
@itemx --expand-tabs
|
||||
Expand tabs to spaces in output.
|
||||
|
||||
@item -T
|
||||
@itemx --initial-tab
|
||||
Make tabs line up by prepending a tab.
|
||||
|
||||
@item -u
|
||||
Use the unified output format.
|
||||
|
||||
@item -U @var{n}
|
||||
@itemx --unified=@var{n}
|
||||
Same as -u but use @var{n} lines of context.
|
||||
|
||||
@item -w
|
||||
@itemx --ignore-all-space
|
||||
Ignore all white space.
|
||||
|
||||
@end table
|
||||
|
||||
Zdiff has the limitation that messages from the diff or cmp programs
|
||||
refer to temporary filenames instead of those specified.
|
||||
|
||||
|
||||
@node Zgrep
|
||||
@chapter Zgrep
|
||||
@cindex zegrep
|
||||
@cindex zfgrep
|
||||
@cindex zgrep
|
||||
|
||||
Zgrep is a wrapper script around the grep command that allows
|
||||
transparent search 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, 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.
|
||||
|
||||
@noindent
|
||||
Zegrep is a shortcut for @samp{zgrep -E}@*
|
||||
Zfgrep is a shortcut for @samp{zgrep -F}
|
||||
|
||||
Zgrep is a front end to the grep program that allows transparent search
|
||||
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.
|
||||
|
||||
The format for running zgrep is:
|
||||
|
||||
@example
|
||||
zgrep [@var{options}] [@var{grep_options}] @var{pattern} [@var{files}]
|
||||
zgrep [@var{options}] @var{pattern} [@var{files}]
|
||||
@end example
|
||||
|
||||
@noindent
|
||||
@var{grep_options} are passed directly to grep. The exit status from
|
||||
grep is preserved.
|
||||
An exit status of 0 means at least one match was found, 1 means no
|
||||
matches were found, and 2 means trouble.
|
||||
|
||||
Zgrep supports the following options:
|
||||
|
||||
@table @samp
|
||||
@item --help
|
||||
@itemx -h
|
||||
Print an informative help message describing the options and exit.
|
||||
|
||||
@item --version
|
||||
@itemx -V
|
||||
@item -V
|
||||
@itemx --version
|
||||
Print the version number of zgrep on the standard output and exit.
|
||||
|
||||
@item -a
|
||||
@itemx --text
|
||||
Treat all files as text.
|
||||
|
||||
@item -A @var{n}
|
||||
@itemx --after-context=@var{n}
|
||||
Print @var{n} lines of trailing context.
|
||||
|
||||
@item -b
|
||||
@itemx --byte-offset
|
||||
Print the byte offset of each line.
|
||||
|
||||
@item -B @var{n}
|
||||
@itemx --before-context=@var{n}
|
||||
Print @var{n} lines of leading context.
|
||||
|
||||
@item -c
|
||||
@itemx --count
|
||||
Only print a count of matching lines per file.
|
||||
|
||||
@item -C @var{n}
|
||||
@itemx --context=@var{n}
|
||||
Print @var{n} lines of output context.
|
||||
|
||||
@item -e @var{pattern}
|
||||
@itemx --regexp=@var{pattern}
|
||||
Use @var{pattern} as the pattern to match.
|
||||
|
||||
@item -E
|
||||
@itemx --extended-regexp
|
||||
Treat @var{pattern} as an extended regular expression.
|
||||
|
||||
@item -f @var{file}
|
||||
@itemx --file=@var{file}
|
||||
Obtain patterns from @var{file}, one per line.
|
||||
|
||||
@item -F
|
||||
@itemx --fixed-strings
|
||||
Treat @var{pattern} as a set of newline-separated strings.
|
||||
|
||||
@item -h
|
||||
@itemx --no-filename
|
||||
Suppress the prefixing filename on output.
|
||||
|
||||
@item -H
|
||||
@itemx --with-filename
|
||||
Print the filename for each match.
|
||||
|
||||
@item -i
|
||||
@itemx --ignore-case
|
||||
Ignore case distinctions.
|
||||
|
||||
@item -I
|
||||
Ignore binary files.
|
||||
|
||||
@item -l
|
||||
@itemx --files-with-matches
|
||||
Only print names of files containing at least one match.
|
||||
|
||||
@item -L
|
||||
@itemx --files-without-match
|
||||
Only print names of files not containing any matches.
|
||||
|
||||
@item -m @var{n}
|
||||
@itemx --max-count=@var{n}
|
||||
Stop after @var{n} matches.
|
||||
|
||||
@item -n
|
||||
@itemx --line-number
|
||||
Prefix each matched line with its line number in the input file.
|
||||
|
||||
@item -o
|
||||
@itemx --only-matching
|
||||
Show only the part of matching lines that actually matches @var{pattern}.
|
||||
|
||||
@item -q
|
||||
@itemx --quiet
|
||||
Suppress all messages.
|
||||
|
||||
@item -r
|
||||
@itemx --recursive
|
||||
Operate recursively on directories.
|
||||
|
||||
@item -s
|
||||
@itemx --no-messages
|
||||
Suppress error messages.
|
||||
|
||||
@item -v
|
||||
@itemx --invert-match
|
||||
Select non-matching lines.
|
||||
|
||||
@item --verbose
|
||||
Verbose mode. Show error messages.
|
||||
|
||||
@item -w
|
||||
@itemx --word-regexp
|
||||
Match only whole words.
|
||||
|
||||
@item -x
|
||||
@itemx --line-regexp
|
||||
Match only whole lines.
|
||||
|
||||
@end table
|
||||
|
||||
|
||||
|
|
@ -213,29 +511,31 @@ ztest [@var{options}] [@var{files}]
|
|||
@end example
|
||||
|
||||
@noindent
|
||||
The exit status is 0 if all files verify OK, 1 otherwise.
|
||||
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.
|
||||
|
||||
Ztest supports the following options:
|
||||
|
||||
@table @samp
|
||||
@item --help
|
||||
@itemx -h
|
||||
@item -h
|
||||
@itemx --help
|
||||
Print an informative help message describing the options and exit.
|
||||
|
||||
@item --version
|
||||
@itemx -V
|
||||
@item -V
|
||||
@itemx --version
|
||||
Print the version number of ztest on the standard output and exit.
|
||||
|
||||
@item --quiet
|
||||
@itemx -q
|
||||
@item -q
|
||||
@itemx --quiet
|
||||
Quiet operation. Suppress all messages.
|
||||
|
||||
@item --recursive
|
||||
@itemx -r
|
||||
@item -r
|
||||
@itemx --recursive
|
||||
Operate recursively on directories.
|
||||
|
||||
@item --verbose
|
||||
@itemx -v
|
||||
@item -v
|
||||
@itemx --verbose
|
||||
Verbose mode. Show the verify status for each file processed.
|
||||
Further -v's increase the verbosity level.
|
||||
|
||||
|
|
@ -254,7 +554,7 @@ for all eternity, if not longer.
|
|||
|
||||
If you find a bug in zutils, please send electronic mail to
|
||||
@email{zutils-bug@@nongnu.org}. Include the version number, which you can
|
||||
find by running @w{@samp{zdiff --version}}.
|
||||
find by running @w{@samp{zutils --version}}.
|
||||
|
||||
|
||||
@node Concept Index
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue