![]() ![]() 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" to restore your backup : 7za x -so directory.tar.7z | tar xf. 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. 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. 7-Zip is a file archiver with the highest compression ratio.
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