10-17-2006
Asking about shell script input output redirection
Hi,
Can anyone please tell me what these lines do?
ls >& outfile
ls outfile 2>&1
Thanks.
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LEARN ABOUT DEBIAN
bup-bloom
bup-bloom(1) General Commands Manual bup-bloom(1)
NAME
bup-bloom - generates, regenerates, updates bloom filters
SYNOPSIS
bup bloom [-d dir] [-o outfile] [-k hashes] [-c idxfile] [-f] [--ruin]
DESCRIPTION
bup bloom builds a bloom filter file for a bup repository. If one already exists, it checks the filter and updates or regenerates it as
needed.
OPTIONS
--ruin destroy bloom filters by setting the whole bitmask to zeros. you really want to know what you are doing if run this and you want to
delete the resulting bloom when you are done with it.
-f, --force
don't update the existing bloom file; generate a new one from scratch.
-d, --dir=directory
the directory, containing .idx files, to process. Defaults to $BUP_DIR/objects/pack
-o, --outfile=outfile
the file to write the bloom filter to. defaults to $dir/bup.bloom
-k, --hashes=hashes
number of hash functions to use only 4 and 5 are valid. defaults to 5 for repositories < 2 TiB, or 4 otherwise. See comments in
git.py for more on this value.
-c, --check=idxfile
checks the bloom file (counterintuitively outfile) against the specified the .idx. Does not write anything and ignores the -k
option.
BUP
Part of the bup(1) suite.
AUTHORS
Brandon Low <lostlogic@lostlogicx.com>.
Bup unknown- bup-bloom(1)