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1 .TH "BROTLI" "1" "February 2018" "brotli 1.0.0" "User commands"
3 \fBbrotli\fR \- brotli, unbrotli \- compress or decompress files
6 \fBbrotli\fP [\fIOPTION|FILE\fR]\.\.\.
8 \fBunbrotli\fP is equivalent to \fBbrotli \-\-decompress\fP
11 \fBbrotli\fP is a generic\-purpose lossless compression algorithm that compresses
13 coding and 2\-nd order context modeling, with a compression ratio comparable to
14 the best currently available general\-purpose compression methods\. It is similar
15 in speed with deflate but offers more dense compression\.
17 \fBbrotli\fP command line syntax similar to \fBgzip (1)\fP and \fBzstd (1)\fP\|\.
19 remove them after processing by using the \fB\-\-rm\fP \fIoption\fR\|\.
21 Arguments that look like "\fB\-\-name\fP" or "\fB\-\-name=value\fP" are \fIoptions\fR\|\. Every
22 \fIoption\fR has a short form "\fB\-x\fP" or "\fB\-x value\fP"\. Multiple short form \fIoptions\fR
26 "\fB\-\-decompress \-\-stdout \-\-suffix=\.b\fP" works the same as
28 "\fB\-d \-s \-S \.b\fP" and
30 "\fB\-dsS \.b\fP"
34 \fBbrotli\fP has 3 operation modes:
39 \fB\-\-decompress\fP option activates decompression mode;
41 \fB\-\-test\fP option switches to integrity test mode; this option is equivalent to
42 "\fB\-\-decompress \-\-stdout\fP" except that the decompressed data is discarded
47 Every non\-option argument is a \fIfile\fR entry\. If no \fIfiles\fR are given or \fIfile\fR
48 is "\fB\-\fP", \fBbrotli\fP reads from standard input\. All arguments after "\fB\-\-\fP" are
51 Unless \fB\-\-stdout\fP or \fB\-\-output\fP is specified, \fIfiles\fR are written to a new file
63 Default suffix is \fB\|\.br\fP, but it could be specified with \fB\-\-suffix\fP option\.
69 \fB\-#\fP:
70 compression level (0\-9); bigger values cause denser, but slower compression
72 \fB\-c\fP, \fB\-\-stdout\fP:
75 \fB\-d\fP, \fB\-\-decompress\fP:
78 \fB\-f\fP, \fB\-\-force\fP:
81 \fB\-h\fP, \fB\-\-help\fP:
84 \fB\-j\fP, \fB\-\-rm\fP:
85 remove source file(s); \fBgzip (1)\fP\-like behaviour
87 \fB\-k\fP, \fB\-\-keep\fP:
88 keep source file(s); \fBzstd (1)\fP\-like behaviour
90 \fB\-n\fP, \fB\-\-no\-copy\-stat\fP:
93 \fB\-o FILE\fP, \fB\-\-output=FILE\fP
96 \fB\-q NUM\fP, \fB\-\-quality=NUM\fP:
97 compression level (0\-11); bigger values cause denser, but slower compression
99 \fB\-t\fP, \fB\-\-test\fP:
102 \fB\-v\fP, \fB\-\-verbose\fP:
105 \fB\-w NUM\fP, \fB\-\-lgwin=NUM\fP:
106 set LZ77 window size (0, 10\-24) (default: 22); window size is
107 \fB(2**NUM \- 16)\fP; 0 lets compressor decide over the optimal value; bigger
111 \fB\-S SUF\fP, \fB\-\-suffix=SUF\fP:
114 \fB\-V\fP, \fB\-\-version\fP:
117 \fB\-Z\fP, \fB\-\-best\fP:
118 use best compression level (default); same as "\fB\-q 11\fP"
123 \fBbrotli\fP file format is defined in
126 \fBbrotli\fP is open\-sourced under the
129 Mailing list: https://groups\.google\.com/forum/#!forum/brotli
132 Report bugs at: https://github\.com/google/brotli/issues