---
name: "lzma_alone"
section: "1"
platform: "linux"
package: "lzma-alone"
version: "24.08+dfsg-2"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/lzma_alone"
---

# lzma\_alone(1)

a compression algorithm, based on Lempel Ziv's compression method.

## NAME

LZMA - a compression algorithm, based on Lempel Ziv's compression method.

## SYNOPSIS

**lzma** **\<e\|d\>** **inputFile** **outputFile** **\[switches...\]**

## DESCRIPTION

LZMA provides high compression ratio and very fast decompression, so it is very suitable for embedded applications. For example, it can be used for ROM (firmware) compression.

- lzma is the default and general compression method of 7z format in 7-Zip program.

  ## FUNCTION LETTERS

- **e**

  Encode file

- **d**

  Decode file

- **b**

  Benchmark

## SWITCHES

- **-a{N}**

  Set compression mode - \[0, 1\], default: 1 (max)

- **-d{N}**

  Set dictionary - \[0,30\], default: 23 (8MB)

- **-fb{N}**

  Set number of fast bytes - \[5, 273\], default: 128

- **-mc{N}**

  Set number of cycles for match finder

- **-lc{N}**

  Set number of literal context bits - \[0, 8\], default: 3

- **-lp{N}**

  Set number of literal pos bits - \[0, 4\], default: 0

- **-pb{N}**

  Set number of pos bits - \[0, 4\], default: 2

- **-mf{MF\_ID}**

  Set Match Finder: \[bt2, bt3, bt4, hc4\], default: bt4

- **-eos**

  Write End Of Stream marker

- **-si**

  Read data from stdin

- **-so**

  Write data to stdout

## SEE ALSO

**7z(1),**7za(1)

## AUTHOR

- Written for Debian by Mohammed Adnene Trojette.