ms=on solid archive = on Example 2 7z a -sfx archive.exe dir1Īdd all files from directory "dir1" to SFX archive archive.exe (Remark : SFX archive MUST end with ".exe") Example 3 7z a -mhe=on -pmy_password archive.7z a_directoryĪdd all files from directory "a_directory" to the archive "archive.7z" (with data and header archive encryption on) See Also 7za(1), 7zr(1), bzip2(1), gzip(1), zip(1) HTML Documentation Author Written for Debian by Mohammed Adnene Trojette. mfb=64 number of fast bytes for LZMA = 64 If you want to send files and directories (not the owner of file) to others Unix/MacOS/Windows users, you can use the 7-zip format.ĭo not use "-r" because this flag does not do what you think.ĭo not use directory/* because of ".*" files (example : "directory/*" does not match "directory/.profile")Įxample 1 7z a -t7z -m0=lzma -mx=9 -mfb=64 -md=32m -ms=on archive.7z dir1 adds all files from directory "dir1" to archive archive.7z using "ultra settings" The 7-Zip program is publicly available under the terms of the GNU Lesser General Public License.The LZMA SDK 4.62 was placed in the public domain in December 2008. You can extract the following split archives: zip, 7z, and rar (zip.001, 7z.001, part1.rar, z01). Also, from mail application, you can open an archive file using this Zarchiver app. The partial archive decompression is also possible with the Zarchiver Pro. The 7z format initially appeared as implemented by the 7-Zip archiver. you can decompress and compress password protected files. to restore your backup : 7za x -so directory.tar.7z | tar xf - 7z is a compressed archive file format that supports several different data compression, encryption and pre-processing algorithms. On Linux/Unix, in order to backup directories you must use tar : - to backup a directory : tar cf - directory | 7za a -si directory.tar.7z User stopped the process with control-C (or similar) Backup and limitationsĭO NOT USE the 7-zip format for backup purpose on Linux/Unix because : - 7-zip does For example, some files cannot be read during compressing. Comparison of 4 File Archiving Compression Software. m Type of archive (7z, zip, gzip, bzip2 or tar. l don't store symlinks store the files/directories they point to (CAUTION : the scanning stage can never end because of recursive symlinks like 'ln -s.
X eXtract with full paths Switches Include eXclude archives Compression ratio in the new 7z format is 30-50% betterħz uses plugins to handle archives. Implements LZMA compression algorithm), ZIP, CAB, ARJ, GZIP, BZIP2, TAR, CPIO, RPM and DEB formats. The cryptographic algorithm is proprietary, so confidential data is better stored in an archive with a more complex protection system (RAR, 7z, etc.). In ZIP archives they use various compression algorithms.
However it is available in unofficial releases for most other OS platforms (Linux, Mac OS X, Solaris, DOS, Amiga, etc.). It’s used by a large number of applications for the exchange of data, back-ups and file compression. Its localized to 79 languages and primary aimed for Windows platform. It is able to decompress a vast number of archiving format. 7-Zip is a file archiver with the highest compression ratio. 7-Zip is an open source file archiver with a high compression ratio.