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1. Shell Programming and Scripting
Hello,
This is really breaking my head. I request you help to solve this problem.
I have a list of files at the source directory (/tmp) as below,
NewTransfer_20131202_APAC.dat
NewTransferFile_20131202_APAC.dat
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NewTransferFile_20131203_APAC.dat... (3 Replies)
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2. Shell Programming and Scripting
Hey everyone,
I have a bunch of lines with values in field 4 that I am interested in.
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3. Shell Programming and Scripting
Hi,
i have a problem with this script:
for i in $(cat list_ip_switch)
do
if
if ; then
echo "found ip"
else
echo "not found ip"
fi
done
cat list_ip_switch
10.155.249.171
10.155.249.172 (3 Replies)
Discussion started by: elilmal
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4. Shell Programming and Scripting
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5. Shell Programming and Scripting
Dear all, today I'm scratching my head with a simple (I believe) issue.
Working with date is quite simple, so if I Need to add some seconds to current time, I'll use:
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6. Shell Programming and Scripting
Experts,
I have a bash shell script that generates 2 variables that have the current minute and a minute from a log file. Can someone please show me the best way to test if the minutes stray by 5. So basically if:
This is ok:
Last Fitting Min
=============
02
Current Minute
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hi,
want to create script that takes name of directory and all files and will copy each file to new directory.
then fix errors like files do not exist or no permission to create new directory...
these what I have so far...
#!/bin/sh
dir=~/Documents/Scripts/Copy
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8. Shell Programming and Scripting
Hello guys,
First of all, thanks for taking the time to read my post.
So, here I have a file from my honeypot which record IP addresses and web pages visited. I would like to manipulate it in order to create Snort signatures and ACLs.
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9. Shell Programming and Scripting
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10. Shell Programming and Scripting
Sorry for such a dreadful title, but I'm not sure how to be more descriptive. I'm hoping some of the more gurutastic out there can take a look at a solution I came up with to a problem, and advice if there are better ways to have gone about it.
To make a long story short around 20K pieces of... (2 Replies)
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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)