because onmode takes unsigned integer with option -z since the value of $sid is string so it is not accepting
Please tell me how should i convert the value into number so that it would be acceptable
i want to convert from an integer to a string..in unix...i am writing a C program with embedded SQL...
I remeber using itoa...but for some reason it doesnt work......i cant find it in the manual.....
Maybe that is the wrong command.....
but i have checked Dev Studio.....and it doest exist in the... (6 Replies)
Hi All,
I want to Rename/Convert all the .doc files in to .pdf format.
I am using the following Script. But the final output is not proper.
##########################################
cd /u13/prepaid/ftpdata/INfiles/sap/
for name in `ls *.doc`
do
name1=`echo $name | sed -e... (11 Replies)
How to convert string into an integer or number
For example :
% set tim = `date`
% echo $tim
Tue Feb 22 16:25:08 IST 2011
here How to increment time by 10 hrs
like 16+10 , here 16 is a string in date cmd. .. how to convert 16 to an integer and added to a another nimber ?
Thanks... (3 Replies)
Hi fellows!!
i'm doing something which is not working out for me properly which i don't understand why
nowdate=`date +%s`
echo $nowdate
now the problem how to convert a date which is stored in a variable
mydate="22/Oct/2011"
mydate=`date -d '$mydate' +%s`
it gives error... (11 Replies)
Using below command
awk 'NR==FNR{A=$1;next}
{sum+=($2*A)}END{OFMT="%20f";print int(sum)}' Market.txt Product.txt
answer:351770174.00000
how to convert this to 351770174.
when i try with below command i am getting different result.
awk 'NR==FNR{A=$1;next}... (3 Replies)
Hi All;
I have 2 variable let's say $A and $B. These are actually some remotely executed command outputs. I captured these values in my local variables. Here is my problem. When I try to do some arithmetic operation with these variables, I receive an error message. Neither expr nor typeset -i... (3 Replies)
Hi all,
I am trying to write a script to be able to
Run top command
Pick the PIDs that are taking more than 90% of CPU time
Get more details like what is the script name and location for that PID
Script should run until I manually kill it by ctrl + C
I have come up with following script... (3 Replies)
I have data as below
"ROWS merge process complete. thousand rows changed"
I need to get a variable assigned the value of 1000. I mean convert the string thousand to 1000.
Any help or pointer.
Please use CODE tags as required by forum rules! (6 Replies)
This is the sample json I have pasted here. I want all the IP address strings to be converted into an array. For example "10.38.32.202" has to be converted to everywhere in the JSON. There are multiple IPs in a JSON I am pasting one sample object from the JSON. But the IPs already in an Array... (11 Replies)
Discussion started by: vinshas1
11 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)
04-12-2013
