Does anybody have an explanation for the following:
The following scripts runs fine on IRIX64 6.5 but has bugs on Solaris 8.
#! /bin/sh
echo run only on an SGI machine
echo type in linenumber
read j
echo value
read value
awk -f rmspass2 level=$value $j'step1.mlf'
When the script is... (5 Replies)
Hi,
Is there any way to pass variable to a sed script.For awk we have -v option.like that do we have any way to pass variable to a sed script from a awk script or from normal script?
Thanx,
sounder (1 Reply)
Hi Folks,
How can I make the following to work from a korn shell?
old="OLDSTRING"
new="NEWSTRING"
file="myfile.txt"
sed -n 's/$old/$new/gp' $file
Thanks in advance
rogers42 (3 Replies)
HI all,
Very new to shell programming and just wanted some help on how to solve the following problem.
I have a small shell script which searches a given file and extracts some string parameters. I want to now be able to call this script from another shell script and somehow pass the parameters... (11 Replies)
HI ,I am a new in Bash and ,I dont know how to pass a second parameter to this fuction,if the name of the passed argument is num works fine,but if I try to pass secondNum,dont recognized it
thanks
function check()
{
if(($(echo ${#num}) == 0 ))
then
echo No arguments passed.Try... (6 Replies)
So I'm writing a script to generate pairwise scores for how similar two strings are, and while I've been able to get it to work on a single script, I've been unable to iterate it.
So suppose I have a file thus
1234567890
1234567890
1234567899
first I need to assign two lines, by their... (3 Replies)
Hi all, I just started some basic Perl programming and have been experimenting with some basic commands and bumped into and issue. Basically, I have a procedure which retrieves a list of names from a file named file. Then the program asks the user to enter a name and compares it to the list... (2 Replies)
I have below data:
DAY1=10202013
I am trying below but not getting the desired output:
COUNT=1
DATE=DAY$COUNT
echo "Date is $DATE"
However output I am getting is:
Date is DAY1
I wanted the output as:
Date is 10202013
I tried following as well:
DAY1=10202013
COUNT=1... (3 Replies)
Hi,
this is the example i'm trying to do.
script1.sh
ABC="test.txt"
./script2.sh "$ABC"
script2.sh
INPUT="$HOMEDIR/$ABC"
echo $INPUT
when i run the 1st script it gives me
../home/
the test.txt is not passed into 2nd script. How can i resolve this. (2 Replies)
Discussion started by: gskris88
2 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)