63 lines
1.7 KiB
Groff
63 lines
1.7 KiB
Groff
.TH PXZ 1 "Jun 2010" pxz "Parallel XZ"
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.SH NAME
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pxz \- Parallel LZMA compressor compatible with XZ.
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.SH SYNOPSIS
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\fBpxz\fR [\fBoptions\fR]... [\fIfile\fR]...
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.SH DESCRIPTION
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.B pxz
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is a compression utility that takes advantage of running
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XZ compression simultaneously on different parts of an input file on
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multiple cores and processors. This significantly speeds up compression time.
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.SH OPTIONS
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.TP
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.I "\-v"
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Be verbose - shows progress.
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.TP
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.I "\-h," "\-\-help"
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Display help.
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.TP
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.I "\-f," "\-\-force"
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Force operation.
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.TP
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.I "\-c," "\-\-stdout"
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Write results to standard output and don't delete input files.
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.TP
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.I "\-k," "\-\-keep"
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Keep (don't delete) input files.
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.TP
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.I "\-T," "\-\-threads"
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Maximal number of threads to run simultaneously.
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.TP
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.I "\-D," "\-\-context\-size"
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Context size per one thread specified as a multiple of dictionary size for active compression level.
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.TP
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.I "\-V," "\-\-version"
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Display version of PXZ.
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.SH EXAMPLES
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.TP
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pxz file1 file2
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Compress file1 and file2 to file1.xz and file2.xz using default settings.
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.TP
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pxz -T4 file1
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Compress file1 with default compression and maximum of 4 threads.
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.TP
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pxz -k -9 file1
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Use maximal compression and keep the original file1, use default number of threads.
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.TP
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pxz -f -T4 file1
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Compress file with default compression and with 4 threads.
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.TP
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pxz -kvf -3 -T8 file1
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Use -3 compression, keep the original file, use 8 threads and show progress.
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.TP
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tar Oc dir1 | pxz -D 12 -cv - > dir1.tar.xz
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Move dir1 into tar, then compress it with the context of 12 sizes of dictionary
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per thread, show progress and write result to dir1.tar.xz.
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.SH "SEE ALSO"
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.BR xz (1)
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.SH AUTHOR
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Jindrich Novy <jnovy@users.sourceforge.net>
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.SH BUGS
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Report bugs via http://bugzilla.redhat.com/bugzilla/
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