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File format and file compression program
single file using the bzip2 file format. libbzip2 is a lossless data compression software library used by the bzip2 program. bzip2 is not a file archiver
Bzip2
Lossless data compression software
gzip and bzip2. Decompression speed is higher than bzip2, but lower than gzip. Compression can be much slower than gzip, and is slower than bzip2 for high
XZ_Utils
File format and file compression program
implementations originally come from NetBSD, and support decompression of bzip2 and the Unix pack format. An alternative compression program achieving 3-8%
Gzip
Lossless compression algorithm
Ziv in 1977 and features a high compression ratio (generally higher than bzip2) and a variable compression-dictionary size (up to 4 GB), while still maintaining
LZMA
Traditionally, tar, cpio, or pax calls the external programs gzip and bzip2 to perform compression; these external programs usually come with systems
Comparison_of_file_archivers
Error-detecting code for detecting data changes
example, the CRC-32 used in Gzip and Bzip2 use the same polynomial, but Gzip employs reversed bit ordering, while Bzip2 does not. Note that even parity polynomials
Cyclic_redundancy_check
Family of archive file formats
specification were not published. Specifications of some features such as BZIP2 compression, strong encryption specification and others were published by
ZIP_(file_format)
File format and file archiver program
as well as tools to compress and decompress them, such as xz, gzip, and bzip2. The tar command was ported to the IBM i operating system. BSD-tar has been
Tar_(computing)
File archiver
Cabinet files (.CAB) ISO 9660 optical disk images Unix compress (.Z), gzip, bzip2, lzip, xz, 7z and zstandard compressed files uuencoded files, as well as
WinRAR
British programmer
contributor who lives in Stuttgart. He is commonly known for creating the bzip2 compression tool in 1996, as well as the valgrind memory debugging toolset
Julian_Seward
Data compression computer program
initial LZ77-style string matching on a 900 MB dictionary window, followed by bzip2-based Burrows–Wheeler transform and entropy coding (Huffman) on 900 kB output
Rzip
Executable file containing the Linux kernel
algorithms. Although the bz prefix may suggest that bzip2 compression is used, this is not the case. (The bzip2 package is often distributed with tools prefixed
Vmlinux
Collection of Unix commands in a single executable file
or image. brctl bunzip2 — Decompress bzip2 files. bzcat — Decompress bzip2 files to stdout. bzip2 — Create bzip2 compressed files. cal — Print a calendar
BusyBox
functionality to do this automatically Per-file compression with gzip, bzip2, lzo, xz, lzma (as opposed to compressing the whole archive). An individual
List_of_archive_formats
Open-source file archiver
compression uses a variety of algorithms, the most common of which are bzip2, PPMd, LZMA2, and LZMA. Developed by Pavlov, LZMA is a relatively new system
7-Zip
Programming language
system, each package has a path (e.g., "compress/bzip2" or "golang.org/x/net/html") and a name (e.g., bzip2 or html). By default other packages' definitions
Go_(programming_language)
Family of archive file formats used by 7-Zip
and less expansion of incompressible data. Bzip2 – The standard Burrows–Wheeler transform algorithm. Bzip2 uses two reversible transformations; BWT, then
7z
Malicious archive file designed to disrupt the program or system reading it
without error. DEFLATE allows for a simple quoting method not applicable to bzip2 zip files. For all compression methods, it is possible to instead mark the
Zip_bomb
File format
a simple RLE algorithm, but GIMP supports compressed files, using gzip, bzip2, or xz. The compressed files can be opened as normal image files. Since
XCF_(file_format)
Free Unix-like operating system kernel
upgrade to the next version. Linux is distributed also in GNU zip (gzip) and bzip2 formats. A developer who wants to change the Linux kernel writes and tests
Linux_kernel
Archiving tool for KDE desktop environment
7z, rar, lha and tar (both uncompressed and compressed with e.g. gzip, bzip2, lzip or xz). Ark uses libarchive and karchive to support tar-based archives
Ark_(software)
another disk. It is often used across a network by piping its output through bzip2 then SSH. A dump utility first appeared in Version 6 AT&T UNIX. A dump command
Dump_(Unix)
Data compression utility
familiar to users of usual Unix compression tools, such as gzip and bzip2. Like gzip and bzip2, concatenation is supported to compress multiple files, but the
Lzip
Compression shell command based on the LZW compression algorithm
patented LZW algorithm. Its use has been replaced by commands such as gzip and bzip2 that use other algorithms and provide better data compression. Compared
Compress_(software)
Utility software for combining files
ar, tar, and cpio do not provide compression, other tools, such as gzip, bzip2, or xz, are used to compress an archive file after it is created and to
File_archiver
documented extensions for the PHP programming language. Apache BCMath Brotli Bzip2 Calendars CCVS ClibPDF COM cURL DB++ IBM Db2 dBase DBM dbx DOM XML FileMaker
List_of_PHP_extensions
Capability that can be built into web servers and web clients
tokens are used in the wild by either servers or clients: bzip2 – compression based on the free bzip2 format, supported by lighttpd lzip – compression based
HTTP_compression
Free and open source file archiver
than programs for classic formats like .Z (LZW), .zip (Deflate), .gz or bzip2. (The scoring formula used in this non-public test, score X = time X × 2
FreeArc
Technique used in signal processing and data compression
LZSS + Huffman LHA/LZH LZ77 + Range LZMA LZHAM RLE + BWT + MTF + Huffman bzip2 Lossy type Transform Discrete cosine transform DCT MDCT DST FFT Wavelet
Discrete_cosine_transform
plist Binary Property List file 42 5A 68 BZh 0 bz2 Compressed file using Bzip2 algorithm 47 49 46 38 37 61 47 49 46 38 39 61 GIF87a GIF89a 0 gif Image
List_of_file_signatures
by and created for Sabayon Linux. It works with binary packages that are bzip2-compressed tar archives (file extension: .tbz2), that are created using
List of software package management systems
List_of_software_package_management_systems
Collection of Unix tools in single executable file
ioctls on each listed block device. bunzip2 — Decompress bzip2 files. bzcat — Decompress bzip2 files to stdout. cal — Print a calendar. cat — Copy (concatenate)
Toybox
Algorithm used in data compression
efficiency of a compression algorithm, and is used this way in software such as bzip2. The algorithm can be implemented efficiently using a suffix array thus
Burrows–Wheeler_transform
it?". fileinfo.com. Retrieved 2018-10-12. "BSON (.bson)". "BYU (.byu)". "BZIP2 Format Specification" (PDF). GitHub. 27 February 2022. "Overall Options
List of filename extensions (A–E)
List_of_filename_extensions_(A–E)
File decompressor software utility
(.arc) ARJ (.arj) BinHex (.hqx), all versions BTOA (.b2a, .btoa) bzip2 (.bzip, .bzip2, .bz, .bz2, .tbz, .tbz2, .tar.bz, .tar.bz2) CAB (.cab) Compact Pro
StuffIt_Expander
Sorting algorithm which uses multiple comparison intervals
exceeds a given limit. This principle is employed, for instance, in the bzip2 compressor. Comb sort Pratt, Vaughan Ronald (1979). Shellsort and Sorting
Shellsort
Improved version of the vi text editor
without the GUI), folding, editing of compressed or archived files in gzip, bzip2, bzip3, zip, and tar format and files over network protocols such as SSH
Vim_(text_editor)
Method for data management
Cabinet File Gzip - File compressed with gzip BZIP - File compressed using bzip2 Tape ARchive (TAR), Unix archive file, not (itself) compressed TAR.Z, TAR
Search_engine_indexing
Open-source antivirus software
for sent mail and on-demand scanning. It recognizes: ZIP, RAR, Tar, Gzip, Bzip2, OLE2, Cabinet, CHM, BinHex, and SIS formats Most mail file formats ELF
ClamAV
Discontinued implementation of the GNU toolchain for Windows
Wget, which. Archive management and compression tools, such as: arc, arj, bzip2, gzip, lha, zip, zlib. Non-GNU utilities such as: cygutils, file, ntfsprogs
GnuWin32
Dual-pane file manager for KDE desktop environment
batch renaming, etc. It supports the following archive formats: tar, ZIP, bzip2, gzip, RAR, ace, ARJ, LHA, 7z and RPM and can handle other KIO Slaves such
Krusader
Data encryption and authentication program
SHA-256, SHA-384, SHA-512, SHA-224 Compression Uncompressed, ZIP, ZLIB, BZIP2 GnuPG was initially developed by Werner Koch. The first production version
GNU_Privacy_Guard
Lossless compression algorithm
September 2015), "Comparison of Brotli, Deflate, Zopfli, LZMA, LZHAM and Bzip2 Compression Algorithms" (PDF), The Comprehensive R Archive Network, r-project
Brotli
Compact encoding of digital data
Asymmetric numeral systems Brotli Burrows–Wheeler transform Byte-pair encoding bzip2 Canonical Huffman code Chain code Context mixing Context tree weighting
Data_compression
Topics referred to by the same term
registration code BZ) .bz, the country code top-level domain for Belize bzip2, an algorithm for data compression Bugzilla, a web-based error tracker and
BZ
Linux distribution
throughout, the kernel was patched to support loading an image compressed with Bzip2, and in many cases older or alternate versions of programs were selected
Tomsrtbt
MIME compatible Unicode compression scheme
requires a complex encoder design for good performance. Usually, the zip, bzip2, and other industry-standard algorithms compact larger amounts of Unicode
Binary Ordered Compression for Unicode
Binary_Ordered_Compression_for_Unicode
BetterZip supports extraction of the following file types: ZIP, SIT, TAR, GZip, BZip2, RAR, 7-Zip, CPIO, ARJ, LZH/LHA, JAR, WAR, CAB, ISO, CHM, RPM, DEB, NSIS
BetterZip
Debian software package format
contains the actual installable files. Compressing the archive with gzip, bzip2, lzma or xz and zstd is supported. The file extension changes to indicate
Deb_(file_format)
Package management system
packages might be zstd-compressed. Recent versions of RPM can also use bzip2, lzip, or lzma compression. RPM 5.0 format supports using xar for archiving
RPM_Package_Manager
Optical disc authoring software
Zipped", even though it is not a simple zip archive. The format uses zlib or bzip2 to compress the data, and may use AES-128,192 or 256 encryption in the CBC
UltraISO
Free GUI for several compression tools
appropriate installed program are 7z, static libraries, apk, arj, bzip, bzip2, bzip3, cab, cb7, cbr, cbt, cbz, chm, compress, cpio, deb, docx, epub, exe
Xarchiver
Linux distribution
Archives – Tar and p7zip (both provide support for gzip, xz, zstd, lz4, bzip2 formats), FSArchiver (compressed archives from file system content) CD/DVD
SystemRescue
Lossless compression algorithm
Public License (LGPL). pyflate, a pure-Python stand-alone Deflate (gzip) and bzip2 decoder by Paul Sladen. Written for research/prototyping and released under
Deflate
Collection of GNU utilities ported to Windows
DLLs). Supported commands include: agrep ansi2knr basename bc bison bunzip2 bzip2 bzip2recover cat chgrp chmod chown cksum cmp comm compress cp csplit cut
UnxUtils
Device or program that encodes/decodes audio data in some bitstream format
LZSS + Huffman LHA/LZH LZ77 + Range LZMA LZHAM RLE + BWT + MTF + Huffman bzip2 Lossy type Transform Discrete cosine transform DCT MDCT DST FFT Wavelet
Audio_codec
Different bootloaders
others TFTP, HTTP gzip, xz LILO No No x86 (PC) Linux zImage, Linux bzImage ? bzip2, gzip loader (FreeBSD) Yes Yes x86 (PC, EFI, UEFI, coreboot, OLPC), ARM
Comparison_of_bootloaders
Computer benchmark specification for CPU integer processing power
specdiff (SPEC's tool that checks benchmark outputs). 401.bzip2 C Compression Julian Seward's bzip2 version 1.0.3, modified to do most work in memory, rather
SPECint
Series of data compression archivers
780 31650 PAQ8PX_v206fix1 125,099,359 12.51 291,916 28151 PPMd 183,976,014 18.4 880 256 bzip2 254,007,875 25.4 379 8 InfoZIP 322,649,703 32.26 104 0.1
PAQ
Drive cloning software
compression by default but can use other schemes such as gzip, LZMA or bzip2. Drive images can be split into smaller files and compressed to save space
Clonezilla
Temporary root file system loaded during boot of Linux
it, the kernel can unpack initrd/initramfs images compressed with gzip, bzip2, LZMA, XZ, LZO, LZ4, and zstd. Some Linux distributions such as Debian will
Initial_ramdisk
Open source free software
archive formats includes: ZIP, 7z, RAR, ARJ, LHA/LZH, TAR, GZ, TGZ, CPIO, BZIP2, RPM, CHM, Z, ISO, CBR, CBZ, EAR and WAR. Zipeg automatically detects filenames
Zipeg
File format for block-based Gzip compression
LZSS + Huffman LHA/LZH LZ77 + Range LZMA LZHAM RLE + BWT + MTF + Huffman bzip2 Lossy type Transform Discrete cosine transform DCT MDCT DST FFT Wavelet
BGZF
Web log analysis software
to be analyzed. In addition, logs compressed with either GZip (.gz) or BZip2 (.bz2) can be processed directly without the need to uncompress before use
Webalizer
formats, including some of the commonly used ones like zip, rar, gzip, bzip2, sqx and 7z. It can also view disk image files like BIN, C2D, IMG, ISO and
TUGZip
Means of compressing an executable file
compression ratio than standard data compression facilities such as gzip, zip or bzip2.[citation needed] This allows software distributors to stay within the constraints
Executable_compression
Installer authoring tool
v3.0.0) and Windows 3.X (Before v1.3.0). Integrated support for DEFLATE, bzip2, and LZMA file compression Support for comparing file version information
Inno_Setup
Computer data measurements and scales
215,880,888 bits – 9.2 GiB size of Wikipedia article text compressed with bzip2 on 2013-06-05 1011 100,000,000,000 bits 237 137,438,953,472 bits (16 gibibytes)
Orders_of_magnitude_(data)
Type of Linux installation
for a context-free grammar into source code for a C, C++ or Java parser. Bzip2 A free and open source lossless data compression algorithm and program developed
Linux_from_Scratch
Free software project that provides compressor-archiver utilities
UnZip 6.0 adds support of "Zip64" .ZIP archive and bzip2 (method 12) decompression. Support for bzip2-style compression was also in Zip from 3.0f beta.
Info-ZIP
Data compression approach allowing perfect reconstruction of the original data
reversible transform for making textual data more compressible, used by bzip2 Huffman coding – Entropy encoding, pairs well with other algorithms Lempel-Ziv
Lossless_compression
File format for sequences and quality scores
of those tools can be seen here. General-purpose tools such as Gzip and bzip2 regard FASTQ as a plain text file and result in suboptimal compression ratios
FASTQ_format
Data compression archiver and format
noatime attributes of ext2/3/4 filesystem. Per-file compression with gzip, bzip2, lzo, xz, lzma, zstd or lz4 (as opposed to compressing the whole archive)
Dar_(disk_archiver)
compressed file ARC – pre-Zip data compression ARJ – ARJ compressed file BZ2 – bzip2 CAB – A cabinet file is a library of compressed files stored as one file
List_of_file_formats
File format developed by Apple and used by macOS
UDIF supports ADC (an old proprietary compression format by Apple), zlib, bzip2 (as of Mac OS X v10.4), LZFSE (as of Mac OS X v10.11), and lzma (as of macOS
Apple_Disk_Image
David Wheeler publish the Burrows–Wheeler transform, later to find use in bzip2 1995 – Benjamin Schumacher coins the term qubit and proves the quantum noiseless
Timeline of information theory
Timeline_of_information_theory
schemes are not as efficient as other compression schemes, like zip or bzip2. Those general-purpose compression schemes can compress longer runs of bytes
Comparison of Unicode encodings
Comparison_of_Unicode_encodings
Family of lossless data compression algorithms
December 1993. "Comparison of Brotli, Deflate, Zopfli, LZMA, LZHAM and Bzip2 Compression Algorithms" (PDF). cran.r-project.org. Grammar-based code Entropy
Dictionary_coder
Data compression utility
file archivers "lzop file compressor ChangeLog". "Quick Benchmark: Gzip vs Bzip2 vs LZMA vs XZ vs LZ4 vs LZO - CatchChallenger wiki". catchchallenger.first-world
Lzop
Dependencies Optional dependencies Botan C++20 SQLite zlib (compression) bzip2 (compression) liblzma (compression) boost trousers (TPM) GnuTLS libc nettle
Comparison of TLS implementations
Comparison_of_TLS_implementations
Computer technology
LZSS + Huffman LHA/LZH LZ77 + Range LZMA LZHAM RLE + BWT + MTF + Huffman bzip2 Lossy type Transform Discrete cosine transform DCT MDCT DST FFT Wavelet
Silence_compression
Surname list
bassist of American rock band Avenged Sevenfold Julian Seward, developer of bzip2, an open-source data compression program Olive Risley Seward (1844–1908)
Seward_(surname)
Fast data compression and decompression library written in C++ by Google
compressors can compress this better. Unlike compression methods such as gzip and bzip2, there is no entropy encoding used to pack alphabet into the bit stream
Snappy_(compression)
Form of entropy encoding used in data compression
source project. At least one significant compression software program, bzip2, deliberately discontinued the use of arithmetic coding in favor of Huffman
Arithmetic_coding
Vendor-neutral file system, used in practice for DVDs and other optical discs
udftools and its forks that contain udftune and udffsck, as well as the cross-platform formatting script format-udf: ZIP (41 MB), TAR BZip2 (26 MB).
Universal_Disk_Format
for archiving and/or compression B1 – for archiving and/or compression bzip2 – for compression gzip – for compression lzip – for compression MAFF – for
List_of_open_file_formats
Gentoo package management system
Gentoo does have a binary packaging format, which is a .tbz2 file (tar with bzip2 compression) with additional metadata. This feature enables the building
Portage_(software)
dde, userinfo Tape and archive commands, including tar, cpio, pax, zip, bzip2, ar Remote connectivity, including ssh, remote shell, telnet, xterm, kterm
MKS_Toolkit
Linux distribution
the DEFLATE compression algorithm), using the .tgz extension. Support for bzip2 and lzip compression was also added, using the filename extensions .tbz
Slackware
PowerArchiver StuffIt WinAce WinRAR WinZip Non-archiving compressors Generic bzip2 compress gzip lzip lzop pack rzip Snappy XZ Utils zstd For code UPX Audio
Nero_Digital
Archive and compression software
choosing the algorithm based on the file extension. For example, it may use Bzip2 to compress .txt files, while using Deflate for files with a .exe extension
ALZip
Computer programming language
OpenSSL, Free Image, GD, hbtip, hbtpathy, PCRE, hbmzip (zlib), hbbz2 (bzip2), cURL, Cairo, its own implementation of CA-Tools, updated NanFor libraries
Harbour (programming language)
Harbour_(programming_language)
Computer executable program
multiple different compression algorithms, including LZMA, LZMA2, PPMd, and BZip2.[citation needed] Decompression utilities must be able to handle both the
Self-extracting_archive
Receiver Independent Exchange Format for raw satellite navigation system data
are also commonly used with general-purpose compressors such as gzip and bzip2. Using a general-purpose compressor on top of CRINEX provides maximum compression
RINEX
Archiving utility for various operating systems
archive_dir # copy Most implementations of pax use the -z (gzip) and -j (bzip2) switches for compression; this feature however, is not specified by POSIX
Pax_(command)
Info-ZIP 2.32 -9 1,020,781 1,023,042 gzip 1.3.5 -9 1,017,624 1,022,810 bzip2 1.0.3 -9 828,347 860,097 7-zip 9.12b 848,687 824,573 bzip3 1.1.8 765,939
Calgary_corpus
E-book reader
disregarding the GUI-toolkit used. Support multiple book tar, ZIP, gzip and bzip2 archives. Encoding detection Generates contents table Embedded images Hyperlinks
FBReader
Open-source AAC codec
PowerArchiver StuffIt WinAce WinRAR WinZip Non-archiving compressors Generic bzip2 compress gzip lzip lzop pack rzip Snappy XZ Utils zstd For code UPX Audio
Fraunhofer_FDK_AAC
Safari's Web archive file format
sometimes compressed, like the .war format used by Konqueror (tar+gzip or tar+bzip2). Safari does not support these alternative archive formats. For archiving
Web_Archive_(file_format)
bpc No Yes Yes No Yes Yes No Yes Yes No No XCF None and lossless (gzip, bzip2 and xz) Both 32 bpc Yes Yes Yes No No Yes Yes Yes Yes Yes Format Compression
Comparison of graphics file formats
Comparison_of_graphics_file_formats
BZIP2
BZIP2
BZIP2
BZIP2
Boy/Male
Hindu
Journey
Boy/Male
Hindi
God.
Girl/Female
Indian, Sanskrit
Intelligence
Boy/Male
Gujarati, Hindu, Indian, Kannada, Malayalam, Marathi, Punjabi, Sikh, Sindhi, Tamil, Telugu
Victory to the Light
Surname or Lastname
English
English : variant spelling of Dice.
Boy/Male
English German
Powerful.
Male
Native American
Variant of Algonquin Nosh, NOSHI means "father."
Boy/Male
Afghan, Arabic, Gujarati, Hindu, Indian, Iranian, Kannada, Marathi, Muslim, Parsi, Sindhi
Equitable; Above; Upon; Elevation; On the Top; Fair; Just; Ascent; Height; Divine
Surname or Lastname
English
English : habitational name from Durham, a city in northeastern England, named from Old English dūn ‘hill’ (see Down 1) + Old Norse holmr ‘island’.
Boy/Male
Basque Latin
Ardent.
BZIP2
BZIP2
BZIP2
BZIP2
BZIP2