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| 1 | .TH COMPRESS 1
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| 2 | .SH NAME
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| 3 | compress, uncompress, zcat \- compress a file using modified Lempel-Ziv coding
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| 4 | .SH SYNOPSIS
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| 5 | \fBcompress\fR [\fB\-cdfv\fR]\fR [\fIfile\fR] ...\fR
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| 6 | .br
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| 7 | .de FL
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| 8 | .TP
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| 9 | \\fB\\$1\\fR
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| 10 | \\$2
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| 11 | ..
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| 12 | .de EX
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| 13 | .TP 20
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| 14 | \\fB\\$1\\fR
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| 15 | # \\$2
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| 16 | ..
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| 17 | .SH OPTIONS
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| 18 | .FL "\-c" "Put output on \fIstdout\fR instead of on \fIfile.Z\fR"
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| 19 | .FL "\-d" "Decompress instead of compress"
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| 20 | .FL "\-f" "Force output even if there is no saving"
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| 21 | .FL "\-v" "Verbose mode"
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| 22 | .SH EXAMPLES
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| 23 | .EX "compress <infile >outfile" "Compress 1 file"
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| 24 | .EX "compress x y z" "Compress 3 files to \fIx.Z\fR, \fIy.Z\fR, and \fIz.Z\fR"
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| 25 | .EX "compress \-d file.Z" "Decompress \fIfile.Z\fR to \fIfile\fR"
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| 26 | .SH DESCRIPTION
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| 27 | .PP
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| 28 | The listed files (or \fIstdin\fR, if none are given) are compressed
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| 29 | using the Ziv-Lempel algorithm. If the output is smaller than the input,
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| 30 | the output is put on \fIfile.Z\fR or \fIstdout\fR if no files are listed.
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| 31 | If \fIcompress\fR is linked to \fIuncompress\fR, the latter is the same
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| 32 | as giving the \fB\-d\fP flag.
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| 33 | Similarly, a link to \fIzcat\fR decompresses to \fIstdout\fR.
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| 34 | The
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| 35 | \s-1MINIX 3\s-1
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| 36 | version of \fIcompress\fR uses 13-bit compression.
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| 37 | This means that when compressing files on other systems for transmission to
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| 38 | \s-1MINIX 3\s-1,
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| 39 | be sure that only 13-bit compression is used.
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| 40 | On many systems, the default is 16-bit (too big).
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| 41 | .SH "SEE ALSO"
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| 42 | .BR tar (1).
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