bup-restore(1) [debian man page]

bup-restore(1)						      General Commands Manual						    bup-restore(1)

NAME

       bup-restore - extract files from a backup set

SYNOPSIS

       bup restore [--outdir=outdir] [-v] [-q]

DESCRIPTION

       bup restore extracts files from a backup set (created with bup-save(1)) to the local filesystem.

       The specified paths are of the form /branch/revision/path/to/file.  The components of the path are as follows:

       branch the name of the backup set to restore from; this corresponds to the --name (-n) option to bup save.

       revision
	      the  revision of the backup set to restore.  The revision latest is always the most recent backup on the given branch.  You can dis-
	      cover other revisions using bup ls /branch.

       /path/to/file
	      the original absolute filesystem path to the file you want to restore.  For example, /etc/passwd.

       Note: if the /path/to/file is a directory, bup restore will restore that directory as well as recursively restoring all its contents.

       If /path/to/file is a directory ending in a slash (ie.  /path/to/dir/), bup restore will restore the children of that directory directly to
       the  current directory (or the --outdir).  If the directory does not end in a slash, the children will be restored to a subdirectory of the
       current directory.  See the EXAMPLES section to see how this works.

OPTIONS

       -C, --outdir=outdir
	      create and change to directory outdir before extracting the files.

       -v, --verbose
	      increase log output.  Given once, prints every directory as it is restored; given twice, prints every file and directory.

       -q, --quiet
	      don't show the progress meter.  Normally, is stderr is a tty, a progress display is printed that shows the  total  number  of  files
	      restored.

EXAMPLE

       Create a simple test backup set:

	      $ bup index -u /etc
	      $ bup save -n mybackup /etc/passwd /etc/profile

       Restore just one file:

	      $ bup restore /mybackup/latest/etc/passwd
	      Restoring: 1, done.

	      $ ls -l passwd
	      -rw-r--r-- 1 apenwarr apenwarr 1478 2010-09-08 03:06 passwd

       Restore the whole directory (no trailing slash):

	      $ bup restore -C test1 /mybackup/latest/etc
	      Restoring: 3, done.

	      $ find test1
	      test1
	      test1/etc
	      test1/etc/passwd
	      test1/etc/profile

       Restore the whole directory (trailing slash):

	      $ bup restore -C test2 /mybackup/latest/etc/
	      Restoring: 2, done.

	      $ find test2
	      test2
	      test2/passwd
	      test2/profile

SEE ALSO

       bup-save(1), bup-ftp(1), bup-fuse(1), bup-web(1)

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															    bup-restore(1)

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bup-random(1)						      General Commands Manual						     bup-random(1)

NAME

       bup-random - generate a stream of random output

SYNOPSIS

       bup random [-S seed] [-fv]

DESCRIPTION

       bup random produces a stream of pseudorandom output bytes to stdout.  Note: the bytes are not generated using a cryptographic algorithm and
       should never be used for security.

       Note that the stream of random bytes will be identical every time bup random is run, unless you provide a different seed  value.   This	is
       intentional:  the  purpose  of this program is to be able to run repeatable tests on large amounts of data, so we want identical data every
       time.

       bup random generates about 240 megabytes per second on a modern test system (Intel Core2), which is faster than you could achieve by  read-
       ing data from most disks.  Thus, it can be helpful when running microbenchmarks.

OPTIONS

       the number of bytes of data to generate.
	      Can be used with the suffices k, M, or G to indicate kilobytes, megabytes, or gigabytes, respectively.

       -S, --seed=seed
	      use  the	given  value  to  seed	the pseudorandom number generator.  The generated output stream will be identical for every stream
	      seeded with the same value.  The default seed is 1.  A seed value of 0 is equivalent to 1.

       -f, --force
	      generate output even if stdout is a tty.	(Generating random data to a tty is generally considered ill-advised, but you  can  do	if
	      you really want.)

       -v, --verbose
	      print a progress message showing the number of bytes that has been output so far.

EXAMPLES

	      $ bup random 1k | sha1sum
	      2108c55d0a2687c8dacf9192677c58437a55db71	-

	      $ bup random -S1 1k | sha1sum
	      2108c55d0a2687c8dacf9192677c58437a55db71	-

	      $ bup random -S2 1k | sha1sum
	      f71acb90e135d98dad7efc136e8d2cc30573e71a	-

	      $ time bup random 1G >/dev/null
	      Random: 1024 Mbytes, done.

	      real   0m4.261s
	      user   0m4.048s
	      sys    0m0.172s

	      $ bup random 1G | bup split -t --bench
	      Random: 1024 Mbytes, done.
	      bup: 1048576.00kbytes in 18.59 secs = 56417.78 kbytes/sec
	      1092599b9c7b2909652ef1e6edac0796bfbfc573

BUP

       Part of the bup(1) suite.

AUTHORS

       Avery Pennarun <apenwarr@gmail.com>.

Bup unknown-															     bup-random(1)

Linux and UNIX Man Pages

bup-restore(1) [debian man page]

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