Bzip2 command

Author: v | 2025-04-24

Compressing with bzip2 The bzip2 command also compresses data. Syntax of the bzip2 command: bzip2 [options] [file] Example: $ bzip2 usr.cpio $ ls usr.cpio.bz2 The file Bzip2 Command. The ‘bzip2’ command is used to compress and decompress files using the Bzip2 compression algorithm. To decompress a .tar.bz2 file with ‘bzip2’, you need to

BZIP2 Command - Create bzip2 compressed archives - jpsoft.com

To compress a file(s), is to significantly decrease the size of the file(s) by encoding data in the file(s) using less bits, and it is normally a useful practice during backup and transfer of a file(s) over a network. On the other hand, decompressing a file(s) means restoring data in the file(s) to its original state.Suggested Read: Learn Linux ‘tar’ Command with This 18 ExamplesThere are several file compression and decompression tools available in Linux such as gzip, 7-zip, Lrzip, PeaZip and many more.In this tutorial, we will look at how to compress and decompress .bz2 files using the bzip2 tool in Linux.Bzip2 is a well known compression tool and it’s available on most if not all the major Linux distributions, you can use the appropriate command for your distribution to install it.$ sudo apt install bzip2 [On Debian/Ubuntu] $ sudo yum install bzip2 [On CentOS/RHEL]$ sudo dnf install bzip2 [On Fedora 22+]The conventional syntax of using bzip2 is:$ bzip2 option(s) filenames How to Use “bzip2” to Compress Files in LinuxYou can compress a file as below, where the flag -z enables file compression:$ bzip2 filenameOR$ bzip2 -z filenameTo compress a .tar file, use the command format:$ bzip2 -z backup.tarImportant: By default, bzip2 deletes the input files during compression or decompression, to keep the input files, use the -k or --keep option.In addition, the -f or --force flag will force bzip2 to overwrite an existing output file.------ To keep input file ------$ bzip2 -zk filename$ bzip2 -zk backup.tarYou can as well set the block size to 100k upto 900k, using -1 or --fast to -9 or –best as shown in the below examples:$ bzip2 -k1 Etcher-linux-x64.AppImage$ ls -lh Etcher-linux-x64.AppImage.bz2 $ bzip2 -k9 Etcher-linux-x64.AppImage $ bzip2 -kf9 Etcher-linux-x64.AppImage $ ls -lh Etcher-linux-x64.AppImage.bz2 The screenshot below shows how to use options to keep the input file, force bzip2 to overwrite an output file and set the block size during compression.Compress Files Using bzip2 in LinuxHow to Use “bzip2” to Decompress Files in LinuxTo decompress a .bz2 file, make use of the -d or --decompress option like so:$ bzip2 -d filename.bz2Note: The file must end with a .bz2 extension for the command above to work.$ bzip2 -vd Etcher-linux-x64.AppImage.bz2 $ bzip2 -vfd Etcher-linux-x64.AppImage.bz2 $ ls -l Etcher-linux-x64.AppImage Decompress bzip2 File in LinuxTo view the bzip2 help page and man page, type the command below:$ bzip2 -h$ man bzip2Lastly, with the simple elaborations above, I believe you are now capable of compressing and decompressing .bz2 files using the bzip2 tool in Linux. However, for any questions or feedback, reach us using the comment section below.Importantly, you may want to go over a few important Tar command examples in Linux so as to learn using the tar utility to create compressed archive files. Dec 18, 2015Parallel BZIP2 v1.1.13 - by: Jeff Gilchrist Available at: is the README for pbzip2, a parallel implementation of thebzip2 block-sorting file compressor. The output of this versionshould be fully compatible with bzip2 v1.0.2 or newer (ie: anythingcompressed with pbzip2 can be decompressed with bzip2).pbzip2 is distributed under a BSD-style license. For details,see the file COPYING.1. HOW TO BUILD -- UNIXType `make'. This builds the pbzip2 program and dynamicallylinks to the libbzip2 library. You should ensure that you haveat least libbzip2 1.0.5 or newer installed as it contains someimportant security bug fixes.If you do not have libbzip2 installed on your system, you shouldfirst go to and install it.Debian users need the package "libbz2-dev". If you want toinstall a pre-built package on Debian, run the following command:'apt-get update; apt-get install pbzip2'If you would like to build pbzip2 with a statically linkedlibbzip2 library, download the bzip2 source from the above site,compile it, and copy the libbz2.a and bzlib.h files into thepbzip2 source directory. Then type `make pbzip2-static'.Note: This software has been tested on Linux (Intel, Alpha), Solaris (Sparc), HP-UX, Irix (SGI), and Tru64/OSF1 (Alpha).2. HOW TO BUILD -- WindowsOn Windows, pbzip2 can be compiled using Cygwin.If you do not have libbzip2 installed on your system, you shouldfirst go to and install it.Cygwin can be found at: a Cygwin shell, go to the directory where the pbzip2 sourcefiles are located and type `make'. This builds the pbzip2program and dynamically links to the libbzip2 library.If you would like to build pbzip2 with a statically linkedlibbzip2 library, download the bzip2 source from the above site,compile it, and copy the libbz2.a file into the pbzip2 sourcedirectory. Then type `make pbzip2-static'.3. DISCLAIMER I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE USE OF THIS PROGRAM, HOWSOEVER CAUSED. DO NOT COMPRESS ANY DATA WITH THIS PROGRAM UNLESS YOU ARE PREPARED TO ACCEPT THE POSSIBILITY, HOWEVER SMALL, THAT THE DATA WILL NOT BE RECOVERABLE.* Portions of this README were copied directly from the bzip2 README written by Julian Seward. 4. PBZIP2 DATA FORMATYou should be able to compress files larger than 4GB with pbzip2.Files that are compressed with pbzip2 are broken up into pieces andeach individual piece is compressed. This is how pbzip2 runs fasteron multiple CPUs since the pieces can be compressed simultaneously.The final .bz2 file may be slightly larger than if it was compressedwith the regular bzip2 program due to this file splitting

Examples of bzip2 Command in Linux - Command Examples

Performs actions on files and directories recursively.21. tarThe tar command in Linux is used to archive files into a tar archive. Using the command options, you can also compress file size with bzip2 & gzip. While creating a tar archive using the tar command, it always keeps the original files. This command is also used to extract files from the tar archive in different ways.Syntaxtar [OPTION]... [FILE]Useful Options -c → Creates uncompressed tar archive. -x → Extracts files from the tar archive. -v → Displays archived files of the tar archive. -f → Sets the name of a tar archive. -t → Displays the list of the tar archive. -j → Creates tar archive with bzip2. -z → Creates tar archive with gzip. -r → Updates files/directories of the existing tar archive. –wildcards → Specifies patterns of archived files of a tar archive. –delete → Deletes file/directory from the tar archive.22. gzipgzip command in Linux is used to compress & decompress files. The file size is decreased without losing data using this command in Linux. This command can also be used to test the integrity of the compressed files. Like some other compression commands, it replaces the original file while compression.Syntaxgzip [OPTION]... [FILE]...Useful Options -f → Forces compression of the file & removes the original file. -k → Compresses file but does not remove the original file. -r → Compresses all files of a specified directory. -v → Displays the name & percentage of reduction of file. -d → Decompresses file that is compressed.23. gunzipThe gunzip command in Linux is used to decompress the compressed files. It is used to check the integrity of the compressed files as well as the percentage reduction of the files in Linux. This command can also be used to display the contents of the compressed files. Like some other decompression commands, it replaces the original file while decompression.Syntaxgunzip [OPTION]... [FILE]...Useful Options -k → Compresses file but does not remove the original file. -v → Displays the name & percentage of reduction of file. -l → Displays information about the compressed files. -c → Displays. Compressing with bzip2 The bzip2 command also compresses data. Syntax of the bzip2 command: bzip2 [options] [file] Example: $ bzip2 usr.cpio $ ls usr.cpio.bz2 The file Bzip2 Command. The ‘bzip2’ command is used to compress and decompress files using the Bzip2 compression algorithm. To decompress a .tar.bz2 file with ‘bzip2’, you need to

bzip2 command in Linux with Examples - GeeksforGeeks

To add files and directories to your .tar archive files by using the "append" flag: tar -rvf tarName.tar textfile.txt path/to/another/directoryr - This is the "append" flag. It replaces the c flag from the tarball creation command. You can use "gzip" to quickly compress your .tar archive file. If you need more compression (smaller output file), you can use "bzip2" instead. bzip2 will take longer to compress the file than gzip. gzip tarName.tarbzip2 tarName.targzip will add the .gz extension to the file name: tarName.tar.gzbzip2 will add the .bz2 extension to the file name: tarName.tar.bz2 You can use the commands in the step above to compress existing tarballs, but you can also compress them as you are creating them by using the right flags: tar -czvf tarName.tar.gz /path/to/directorytar -cjvf tarName.tar.bz2 /path/to/directoryz - This flag will compress the new .tar file using gzip. Make sure to include the .gz extension at the end of the file name.j - This flag will compress the new .tar file using bzip2. Make sure to include the .bz2 extension at the end of the file name.[1]Advertisement Ask a Question 200 characters left Include your email address to get a message when this question is answered. Submit AdvertisementVideoA detailed explanation of all of the "Tar" parameters can be obtained at any time by typing "tar --help." Thanks for submitting a tip for review! Advertisement About This Article Thanks to all authors for creating a page that has been read 293,109 times. Is this article up to date? To avoid namespace pollution.Unfortunately this means that the libbz2.so created byMakefile-libbz2_so will not work with any program which used an olderversion of the library. I do encourage library clients to make theeffort to upgrade to use version 1.0, since it is both faster and morerobust than previous versions.HOW TO BUILD -- Windows 95, NT, DOS, Mac, etc.It's difficult for me to support compilation on all these platforms.My approach is to collect binaries for these platforms, and put themon the master web site ( Look there. However(FWIW), bzip2-1.0.X is very standard ANSI C and should compileunmodified with MS Visual C. If you have difficulties building, youmight want to read README.COMPILATION.PROBLEMS.At least using MS Visual C++ 6, you can build from the unmodifiedsources by issuing, in a command shell: nmake -f makefile.msc(you may need to first run the MSVC-provided script VCVARS32.BAT so as to set up paths to the MSVC tools correctly).VALIDATIONCorrect operation, in the sense that a compressed file can always bedecompressed to reproduce the original, is obviously of paramountimportance. To validate bzip2, I used a modified version of MarkNelson's churn program. Churn is an automated test driver whichrecursively traverses a directory structure, using bzip2 to compressand then decompress each file it encounters, and checking that thedecompressed data is the same as the original.Please read and be aware of the following:WARNING: This program and library (attempts to) compress data by performing several non-trivial transformations on it. Unless you are 100% familiar with *all* the algorithms contained herein, and with the consequences of modifying them, you should NOT meddle with the compression or decompression machinery. Incorrect changes can and very likely *will* lead to disastrous loss of data.DISCLAIMER: I TAKE NO RESPONSIBILITY FOR ANY LOSS OF DATA ARISING FROM THE USE OF THIS PROGRAM/LIBRARY, HOWSOEVER CAUSED. Every compression of a file implies

Guide to the Linux bzip2 Command With Examples

See the CHANGES file.WHAT'S NEW IN 1.0.5 ? See the CHANGES file.WHAT'S NEW IN 1.0.6 ? See the CHANGES file.I hope you find bzip2 useful. Feel free to contact me at [email protected] you have any suggestions or queries. Many people mailed me withcomments, suggestions and patches after the releases of bzip-0.15,bzip-0.21, and bzip2 versions 0.1pl2, 0.9.0, 0.9.5, 1.0.0, 1.0.1,1.0.2 and 1.0.3, and the changes in bzip2 are largely a result of thisfeedback. I thank you for your comments.bzip2's "home" is [email protected], UK.18 July 1996 (version 0.15)25 August 1996 (version 0.21) 7 August 1997 (bzip2, version 0.1)29 August 1997 (bzip2, version 0.1pl2)23 August 1998 (bzip2, version 0.9.0) 8 June 1999 (bzip2, version 0.9.5) 4 Sept 1999 (bzip2, version 0.9.5d) 5 May 2000 (bzip2, version 1.0pre8)30 December 2001 (bzip2, version 1.0.2pre1)15 February 2005 (bzip2, version 1.0.3)20 December 2006 (bzip2, version 1.0.4)10 December 2007 (bzip2, version 1.0.5) 6 Sept 2010 (bzip2, version 1.0.6)

How to Use the Command 'bzip2' (with Examples)

Zip is the most widely used archive file format that supports lossless data compression.A Zip file is a data container containing one or more compressed files or directories. Compressed (zipped) files take up less disk space and can be transferred from one to another machine more quickly than uncompressed files. Zip files can be easily extracted in Windows, macOS, and Linux using the utilities available for all operating systems.This tutorial will show you how to Zip (compress) files and directories in Linux using the zip command.zip Command zipis a command-line utility that helps you create Zip archives.The zip command takes the following syntax form:zip OPTIONS ARCHIVE_NAME FILESTo create a Zip archive in a specific directory, the user needs to have write permissions on that directory.Zip files do not support Linux-style ownership information. The extracted files are owned by the user that runs the command. To preserve the file ownershipand permissions, use the tarcommand.The zip utility is not installed by default in most Linux distributions, but you can easily install it using your distribution package manager.Install zip on Ubuntu and Debian sudo apt install zipInstall zip on CentOS and Fedora sudo yum install zipTo zip one or more files, specify the files you want to add to the archive separated by space, as shown below:zip archivename.zip filename1 filename2 filename3adding: filename1 (deflated 63%)adding: filename2 (stored 0%)adding: filename3 (deflated 38%)By default, the zip command prints the names of the files added to the archive and the compression method. We’ll explain the compression methods and levels later in this guide.If the archive name doesn’t end with .zip, the extension is added automatically unless the archive name contains a dot. zip archivename.zip filename will create an archive with the same name as would zip archivename filename.To suppress the output of the zip command, use the -q option:zip -q archivename.zip filename1 filename2 filename3Often, you’ll create a zip archive of a directory including the content of subdirectories. The -r option allows you to traverse the whole directory structure recursively:zip -r archivename.zip directory_nameYou can also add multiple files and directories in the same archive:zip -r archivename.zip directory_name1 directory_name2 file1 file1Compression Methods and Levels The default compression method of Zip is deflate. If the zip utility determines that a file cannot be compressed, it simply stores the file in the archive without compressing it using the store method. In most Linux distributions, the zip utility also supports the bzip2 compression method.To specify a compression method, use the -Z option.zip -r -Z bzip2 archivename.zip directory_name...adding: sub_dir/ (stored 0%)adding: sub_dir/file1 (bzipped 52%)adding: sub_dir/file2 (bzipped 79%)The zip command allows you to specify a compression level using a number prefixed with a dash from 0 to 9. The default compression level is -6. When using -0, all files will be stored without compression. -9 will force the zip command to use an optimal compression for all files.For example, to use the compression level -9, you would type something like this:zip -9 -r archivename.zip directory_nameThe higher the compression level, the more CPU-intensive the zip. Compressing with bzip2 The bzip2 command also compresses data. Syntax of the bzip2 command: bzip2 [options] [file] Example: $ bzip2 usr.cpio $ ls usr.cpio.bz2 The file Bzip2 Command. The ‘bzip2’ command is used to compress and decompress files using the Bzip2 compression algorithm. To decompress a .tar.bz2 file with ‘bzip2’, you need to

BZIP2 1.5 - Total Commander - totalcmd.net

OPTIONS AS DICTIONARY (KB-H051)] OK[HOOK - conan-center.py] pre_export(): [CONFIG.YML HAS NEW VERSION (KB-H052)] OK[HOOK - conan-center.py] pre_export(): [PRIVATE IMPORTS (KB-H053)] OK[HOOK - conan-center.py] pre_export(): [SINGLE REQUIRES (KB-H055)] OK[HOOK - conan-center.py] pre_export(): [TOOLS RENAME (KB-H057)] OK[HOOK - conan-center.py] pre_export(): [ILLEGAL CHARACTERS (KB-H058)] OK[HOOK - conan-center.py] pre_export(): [CLASS NAME (KB-H059)] OK[HOOK - conan-center.py] pre_export(): ERROR: [NO CRLF (KB-H060)] The file 'test_package.c' uses CRLF. Please, replace by LF. ( [HOOK - conan-center.py] pre_export(): [NO BUILD SYSTEM FUNCTIONS (KB-H061)] OK[HOOK - conan-center.py] pre_export(): WARN: [TOOLS CROSS BUILDING (KB-H062)] The 'tools.cross_building(self.settings)' syntax in D:\dev\lib\conan-center-index\recipes\bzip2\all\test_package\conanfile.py may not work correctly in some scenarios. Consider using tools.cross_building(self).[HOOK - conan-center.py] pre_export(): [TOOLS CROSS BUILDING (KB-H062)] OK[HOOK - conan-center.py] pre_export(): WARN: [INVALID TOPICS (KB-H064)] The topic 'conan' is invalid and should be removed from topics attribute.[HOOK - conan-center.py] pre_export(): [INVALID TOPICS (KB-H064)] OKExporting package recipebzip2/1.0.8 exports: File 'conandata.yml' found. Exporting it...bzip2/1.0.8 exports: Copied 1 '.yml' file: conandata.ymlbzip2/1.0.8 exports_sources: Copied 1 '.txt' file: CMakeLists.txtbzip2/1.0.8 exports_sources: Copied 1 '.patch' file: 0001-fix-sys-stat-include.patch[HOOK - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] Saving conandata.yml: {'sources': {'1.0.8': {'url': ' 'sha256': 'ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269'}}} [HOOK - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] New conandata.yml contents: sources: 1.0.8: sha256: ab5a03176ee106d3f0fa90e381da478ddae405918153cca248e682cd0c4a2269 url: - conan-center.py] post_export(): [CONANDATA.YML REDUCE (KB-H031)] OK[HOOK - conan-center.py] post_export(): [DEFAULT SHARED OPTION VALUE (KB-H050)] OK[HOOK - conan-center.py] post_export(): [LICENSE PUBLIC DOMAIN (KB-H056)] OKbzip2/1.0.8: A new conanfile.py version was exportedbzip2/1.0.8: Folder: D:\dev\.conan\data\bzip2\1.0.8\_\_\exportbzip2/1.0.8: Using the exported files summary hash as the recipe revision: a8210c6edbe554578ad1944e23c9b324 bzip2/1.0.8: Exported revision: a8210c6edbe554578ad1944e23c9b324Configuration:[settings]arch=x86_64arch_build=x86_64build_type=Releasecompiler=msvccompiler.cppstd=20compiler.runtime=dynamiccompiler.runtime_type=Releasecompiler.version=193os=Windowsos_build=Windows[options][build_requires][env]bzip2/1.0.8: Forced build from sourcebzip2/1.0.8 (test package): Installing packageRequirements bzip2/1.0.8 from local cache - CachePackages bzip2/1.0.8:8225dbb52b22259f8b88b3bddfc249d0262dd87a - BuildInstalling (downloading, building) binaries...[HOOK - conan-center.py] pre_source(): [IMMUTABLE SOURCES (KB-H010)] OKbzip2/1.0.8: Configuring sources in D:\dev\.conan\data\bzip2\1.0.8\_\_\sourceDownloading bzip2-1.0.8.tar.gz completed [791.04k] [HOOK - conan-center.py] post_source(): [LIBCXX MANAGEMENT (KB-H011)] OK[HOOK - conan-center.py] post_source(): [CPPSTD MANAGEMENT (KB-H022)] OKbzip2/1.0.8: Copying sources to build folderbzip2/1.0.8: Building your package in D:\dev\.conan\data\bzip2\1.0.8\_\_\build\8225dbb52b22259f8b88b3bddfc249d0262dd87abzip2/1.0.8: Generator cmake created conanbuildinfo.cmakebzip2/1.0.8: Aggregating env generators[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] 'fPIC' option not found[HOOK - conan-center.py] pre_build(): [FPIC MANAGEMENT (KB-H007)] OKbzip2/1.0.8: Calling build()CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.CMake Error: CMake was unable to find a build program corresponding to "MinGW Makefiles". CMAKE_MAKE_PROGRAM is not set. You probably need to select a different build tool.CMake Error: CMAKE_C_COMPILER not set, after EnableLanguage-- Configuring incomplete, errors occurred!bzip2/1.0.8: bzip2/1.0.8: ERROR: Package '8225dbb52b22259f8b88b3bddfc249d0262dd87a' build failedbzip2/1.0.8: WARN: Build folder D:\dev\.conan\data\bzip2\1.0.8\_\_\build\8225dbb52b22259f8b88b3bddfc249d0262dd87aERROR: bzip2/1.0.8: Error in build() method, line 63 cmake = self._configure_cmake()while calling '_configure_cmake', line 57 self._cmake.configure() ConanException: Error 1 while executing cd D:\dev\.conan\data\bzip2\1.0.8\_\_\build\8225dbb52b22259f8b88b3bddfc249d0262dd87a && cmake -G "MinGW Makefiles" -DCONAN_LINK_RUNTIME="/dynamic" -DCMAKE_BUILD_TYPE="Release" -DCONAN_IN_LOCAL_CACHE="ON" -DCONAN_COMPILER="msvc" -DCONAN_COMPILER_VERSION="193" -DBUILD_SHARED_LIBS="OFF" -DCMAKE_INSTALL_PREFIX="D:\dev\.conan\data\bzip2\1.0.8\_\_\package\8225dbb52b22259f8b88b3bddfc249d0262dd87a" -DCMAKE_INSTALL_BINDIR="bin" -DCMAKE_INSTALL_SBINDIR="bin" -DCMAKE_INSTALL_LIBEXECDIR="bin" -DCMAKE_INSTALL_LIBDIR="lib" -DCMAKE_INSTALL_INCLUDEDIR="include" -DCMAKE_INSTALL_OLDINCLUDEDIR="include" -DCMAKE_INSTALL_DATAROOTDIR="share" -DCMAKE_EXPORT_NO_PACKAGE_REGISTRY="ON" -DCONAN_EXPORTED="1" -DBZ2_VERSION_STRING="1.0.8" -DBZ2_VERSION_MAJOR="1" -DBZ2_BUILD_EXE="True" -Wno-dev D:\dev\.conan\data\bzip2\1.0.8\_\_\build\8225dbb52b22259f8b88b3bddfc249d0262dd87a