Hello,
I have files like this
img.txt
./Rearrange_zoca/fitted_data/WX226_05b_Ncere.jpg
./Rearrange_zoca/fitted_data/w322_03B_60_70.jpg
./Rearrange_zoca/fitted_data/wrx226_12A_50_60.jpg
./Rearrange_zoca/fitted_data/wx124_01A_50_60.jpg
./Rearrange_zoca/fitted_data/wx124_02A_50_60.jpg... (3 Replies)
Hello forum members,
I have to create a out file in the current path./aaa/bbb/ccc/hhh.
i am writing script below.
###script Begins#####
#!/bin/ksh
echo "Weclome"
if
then
echo "Hello"
rm -rf $aaa/bbb/ccc/hhh #clean the exsisting o/p file
echo "no... (2 Replies)
Hey guys,
I need to know how to locate all .htaccess files on the server and make a backup of them in the folder they reside before I run a script to modify all of them.
So basically taking dir1/.htaccess and copying it as dir1/.htaccess_bk
dir2/.htaccess copying as dir2/.htaccess_bk... (5 Replies)
I have a number of files in directories labeled like this:
/Data/tr_gray/tr_DTI/dti_FA.nii.gz
(the brackets here represent a range of number that the files are labeled with)
I need to rename each dti_FA.nii.gz file according to the name of the folder it resides in. For example, the file ... (3 Replies)
Hi,
I am new to shell scripting.Please help me on this.I am using solaris 10 OS and shell i am using is
# echo $0
-sh
My requirement is i have source file say makefile.I need to extract files with extensions (.c |.cxx |.h |.hxx |.sc) from the makefile.after doing so i need to check whether... (13 Replies)
I have two files : Alpha and Beta.
The files are as follows (without arrow marks.)
Alpha:
A 1
D 90
G 11
B 24
C 15
Beta:
B 24
C 0 <--
G 11
D 20 <--
A 4 <--
E 777 <--
Expected output of the script :
Alpha: (2 Replies)
Greetings!
Here's one which has been bugging me for a bit ;)
As might be known, LibreOffice is available to some of us Linux folk as a large set of debs. Of course, being a curious sort, I'd like to dig in and recreate the original tree which is composed of these assorted archives.
So, I... (1 Reply)
Hi Guys,
I need to copy the files to respective directories based on name of the file. My script is something like below
con=$1
for file in `cat $con`
do
file_tmp=$(ls -t1 $path| grep -i $file | head -n 1)
echo $file_tmp
if
then
cp $path$file_tmp $DIR/ap
if
then... (16 Replies)
Hi Team,
I got a requirement to send a mail to the individual users of a unix server about their respective groups. can some one help me to provide the script as I am unable to write that.
I tried with below lines but I come out with errors.
cat /etc/passwd | awk -F':' '{ print $1}' |... (6 Replies)
I want to make a config file which contain all the paths.
i want to read the config file line by line and pass as an argument on my below function.
Replace all the path with reading config path line by line and pass in respective functions.
how can i achieve that?
Kindly guide.
... (6 Replies)
Discussion started by: sadique.manzar
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)