Dump (Unix)

Template:More footnotes Template:Lowercase Template:Template otherTemplate:Main other The dump command is a program on Unix and Unix-like operating systems used to back up file systems. It operates on blocks, below filesystem abstractions such as files and directories. Dump can back up a file system to a tape or 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 is also part of ASCII's MSX-DOS2 Tools for MSX-DOS version 2.

Usage

dump [-0123456789acLnSu] [-B records] [-b blocksize] [-C cachesize]
[-D dumpdates] [-d density] [-f file | -P pipecommand] [-h level]
[-s feet] [-T date] filesystem

$ dump -W | -w

See also

• tar (file format)
• cpio
• rsync

External links

• Home page of the Linux Ext2 filesystem dump/restore utilities