12-17-2012
You are getting an error from the command itself - you are trying to set up an emulated device that is already set up. I think you are misusing the command itself, which I know very little about.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hello all, need a little help.
I have an input variable such as ARGV which equals something like
/use/home/name/script/test.dat
I need to be able to get just the "test.dat" (i.e. the file name) at the end of the directory and the directory can be anything and any length. To put it another... (3 Replies)
Discussion started by: methos
3 Replies
2. Shell Programming and Scripting
I have a variable (it is a date actually -> 2007-01-03) which
would be passed in as parameter, what I want is to parse in and put
year, month, and day in separate variables, I have tried the following
but doesn't work
echo $dt | awk -F- '{print $1 $2 $3}' | read y m d
Thanks in... (2 Replies)
Discussion started by: mpang_
2 Replies
3. Shell Programming and Scripting
I have a script I use on my web server (Apache2). I am changing to Lighttpd and need to make a few changes.
This is what I use on my apache server
#!/bin/bash
# accepts 3 parameters: <domain name> <user name> <XXXXXXXX>
# domain name is without www (just domain.com)
# username would be... (3 Replies)
Discussion started by: vertical98
3 Replies
4. Shell Programming and Scripting
Hello,
Is there a quick way to parse the values from a variable?
The variable has the following sample input:
TA=
The values of the TA variable is not fixed/hardcoded
Basically I need to get the IV_Test and PF_SAPP_FWK values.
I created a script that first use sed to remove ,... (3 Replies)
Discussion started by: racbern
3 Replies
5. Shell Programming and Scripting
I have a variable which has a full path to the file, for example :
A=/t1/bin/f410pdb
Does anybody know the command to parce this variable and assign the result to 3 other variables so each subdirectory name will be in a new variable like this
B=t1
C=bin
D=f410pdb
Many thanks -A (5 Replies)
Discussion started by: aoussenko
5 Replies
6. Shell Programming and Scripting
What I am trying to do is write a script that makes some commands easier, now one of the commands is to rebuild mail boxes in plesk, which would would be something like
/usr/loca/psa/websrvmng --vhost-reconfigure --vhost-name=domain.com
but the domain.com bit is going to need to change with... (3 Replies)
Discussion started by: foz
3 Replies
7. Shell Programming and Scripting
<SUMMARY filecount_excluded="0" dirbytes_sent="3367893" dirbytes_hashcache="13275664" ..and so on..>
<session numthreads="1" type="avtarbackup" ndispatchers="1" ..and so on..><host numprocs="4"
speed="900" osuser="root" name="ashsux01" memory="24545" /><build time="11:04:53" msgversion="13-10" ... (11 Replies)
Discussion started by: Ikon
11 Replies
8. UNIX for Advanced & Expert Users
Hi,
I want to parse nested variable in my script.
for exp-
c=1
G1='0318'
G2='0023'
G3='3092'
G4='0014'
while ;do
g=G$c
a=$g
echo "Group=$g and value=$a"
c=`expr $c + 1`
done
final output are as -
---------------------------
Group=G1 and... (4 Replies)
Discussion started by: apskaushik
4 Replies
9. Shell Programming and Scripting
Hi all,
I am passing a variable in .mk file as
NEED="TEST=Name WORK=Ps DEL=let"
I need to echo and export each variable like TEST, WORK. DEL
TEST=Name
WORK=Ps
DEL=let
We have to parse the NEED variable which may contain many elements like TEST, DEL& etc..
Any idea on this... (10 Replies)
Discussion started by: ricky-row
10 Replies
10. UNIX for Beginners Questions & Answers
Im trying to search for a single variable in the first field and from that output use awk to extract out the lines that contain a value less than a value stored in another variable. Both the variables are associated with each other.
Any guidance is appreciated.
File that contains the... (6 Replies)
Discussion started by: ncwxpanther
6 Replies
LEARN ABOUT DEBIAN
bup-margin
bup-margin(1) General Commands Manual bup-margin(1)
NAME
bup-margin - figure out your deduplication safety margin
SYNOPSIS
bup margin [options...]
DESCRIPTION
bup margin iterates through all objects in your bup repository, calculating the largest number of prefix bits shared between any two
entries. This number, n, identifies the longest subset of SHA-1 you could use and still encounter a collision between your object ids.
For example, one system that was tested had a collection of 11 million objects (70 GB), and bup margin returned 45. That means a 46-bit
hash would be sufficient to avoid all collisions among that set of objects; each object in that repository could be uniquely identified by
its first 46 bits.
The number of bits needed seems to increase by about 1 or 2 for every doubling of the number of objects. Since SHA-1 hashes have 160 bits,
that leaves 115 bits of margin. Of course, because SHA-1 hashes are essentially random, it's theoretically possible to use many more bits
with far fewer objects.
If you're paranoid about the possibility of SHA-1 collisions, you can monitor your repository by running bup margin occasionally to see if
you're getting dangerously close to 160 bits.
OPTIONS
--predict
Guess the offset into each index file where a particular object will appear, and report the maximum deviation of the correct answer
from the guess. This is potentially useful for tuning an interpolation search algorithm.
--ignore-midx
don't use .midx files, use only .idx files. This is only really useful when used with --predict.
EXAMPLE
$ bup margin
Reading indexes: 100.00% (1612581/1612581), done.
40
40 matching prefix bits
1.94 bits per doubling
120 bits (61.86 doublings) remaining
4.19338e+18 times larger is possible
Everyone on earth could have 625878182 data sets
like yours, all in one repository, and we would
expect 1 object collision.
$ bup margin --predict
PackIdxList: using 1 index.
Reading indexes: 100.00% (1612581/1612581), done.
915 of 1612581 (0.057%)
SEE ALSO
bup-midx(1), bup-save(1)
BUP
Part of the bup(1) suite.
AUTHORS
Avery Pennarun <apenwarr@gmail.com>.
Bup unknown- bup-margin(1)