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dump
Developer(s)	AT&T Bell Laboratories
Initial release	November 1973; 50 years ago (1973-11)
Operating system	Unix and Unix-like, MSX-DOS
Type	Command

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.^[1] A dump command is also part of ASCII's MSX-DOS2 Tools for MSX-DOS version 2.^[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

References

External links

Unix command-line interface programs and shell builtins

Unix command-line interface programs and shell builtins
File system	cat chattr chmod chown chgrp cksum cmp cp dd du df file fuser ln ls mkdir mv pax pwd rm rmdir split tee touch type umask
Processes	at bg crontab fg kill nice ps time
User environment	env exit logname mesg talk tput uname who write
Text processing	awk basename comm csplit cut diff dirname ed ex fold head iconv join m4 more nl paste patch printf read sed sort strings tail tr troff uniq vi wc xargs
Shell builtins	alias cd echo test unset wait
Searching	find grep
Documentation	man
Software development	ar ctags lex make nm strip yacc
Miscellaneous	bc cal expr lp od sleep true and false
Categories Standard Unix programs Unix SUS2008 utilities List

Usage

See also

References

External links