Lines Matching refs:lz4
1 lz4(1) -- lz4, unlz4, lz4cat - Compress or decompress .lz4 files
7 `lz4` [*OPTIONS*] [-|INPUT-FILE] <OUTPUT-FILE>
9 `unlz4` is equivalent to `lz4 -d`
11 `lz4cat` is equivalent to `lz4 -dcfm`
14 it is recommended to always use the name `lz4` with appropriate arguments
15 (`lz4 -d` or `lz4 -dc`) instead of the names `unlz4` and `lz4cat`.
21 `lz4` is an extremely fast lossless compression algorithm,
23 `lz4` offers compression speeds of 400 MB/s per core, linearly scalable with
27 The native file format is the `.lz4` format.
29 ### Difference between lz4 and gzip argument
31 `lz4` supports a command line syntax similar _but not identical_ to `gzip(1)`.
34 * `lz4` preserves original files
35 * `lz4` compresses a single file by default (see `-m` for multiple files)
36 * `lz4 file1 file2` means : compress file1 _into_ file2
37 * `lz4 file.lz4` will default to decompression (use `-z` to force compression)
38 * `lz4` shows real-time notification statistics
44 `file` is compressed into `file.lz4`.
46 `lz4 file | consumer` sends compressed data to `consumer` through `stdout`,
47 hence it does _not_ create `file.lz4`.
48 * Another consequence of those rules is that to run `lz4` under `nohup`,
49 you should provide a destination file: `nohup lz4 file file.lz4`,
54 * `lz4 -m` makes it possible to provide multiple input filenames,
55 which will be compressed into files using suffix `.lz4`.
59 * Similarly, `lz4 -m -d` can decompress multiple `*.lz4` files.
62 * Consequently, `lz4 -m --rm` behaves the same as `gzip`.
64 ### Concatenation of .lz4 files argument
66 It is possible to concatenate `.lz4` files as is.
67 `lz4` will decompress such files as if they were a single `.lz4` file.
70 lz4 file1 > foo.lz4
71 lz4 file2 >> foo.lz4
73 Then `lz4cat foo.lz4` is equivalent to `cat file1 file2`.
100 (for example, a file extension `.lz4` implies `--decompress` by default).
102 `.lz4` file.
107 `.lz4` extension.
110 Test the integrity of compressed `.lz4` files.
146 When used with `--decompress` and `lz4` cannot recognize the type of
149 that have not been compressed with `lz4`.
156 Compressed file names will be appended a `.lz4` suffix.
158 `lz4 -m` has a behavior equivalent to `gzip -k`
228 Report bugs at: https://github.com/lz4/lz4/issues