dump (Unix)

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{{Infobox software

| name = dump

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| developer = AT&T Bell Laboratories

| released = {{Start date and age|1973|11}}

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| operating system = Unix and Unix-like, MSX-DOS

| genre = Command

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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.{{cite web | title = dump.c | publisher = Bitsavers' Software Archive | url = http://bitsavers.informatik.uni-stuttgart.de/bits/Interdata/32bit/unix/univWollongong_v6/interdata_v6/usr/source/etc/dump.c | access-date = 8 March 2013 }} A dump command is also part of ASCII's MSX-DOS2 Tools for MSX-DOS version 2.{{Cite book |last=ASCII Corporation |url=http://archive.org/details/MSXDOS2TOOLS |title=MSX-DOS2 Tools User's Manual by ASCII Corporation |date=1993-04-01}}