Hi All,
How do I search first string & second string and copy all content between them from one file to another file?
Please help me..
Thanks In Advance.
Regards,
Pankaj (12 Replies)
Hi i have a file (file1)with this content:
1.2.3.10.in-addr.arpa
and a second file (file2) with a content wich have 8 Columns
if a do a
awk '{print $8}' file2
i become this output:
,'10.3.2.1.',
So i want to replace only the 10.3.2.1. in file2 (column 8) with the information... (8 Replies)
Hi ,
i Have 11 Gb file which contain 70 database but I want only one database
now i want content of file copy to other file
as
from starting from word of file1
create database xyz
to end word
create database xyz1
this copies to other file2
By this I cant get required database... (2 Replies)
How to copy entire file content into another file being in last line mode of vi ?
---------- Post updated at 10:07 AM ---------- Previous update was at 09:56 AM ----------
Got it :
:1,30w file.txt (1 Reply)
Hello Guys
I have a directory of xml files (almost 500 ) Now in each xml file 3 new attributes will be added which are in a different single file
Is there any way I can copy the whole content of single file at 6th line of all the files in the directory .
Thanks a lot!!! (7 Replies)
Hi Guys
I want to write a script which search mail with subject line and after that I want the mail content in a file
please help guys.
Thanks
Atul Singh (3 Replies)
I have a file called part1.pdb...contents are:
ATOM 1 N SER 1 -10.295 -8.909 10.913 1.00 0.00
ATOM 2 H1 SER 1 -10.230 -8.214 10.183 1.00 0.00
ATOM 3 H2 SER 1 -9.558 -8.745 11.584 1.00 0.00
ATOM 4 H3 SER 1 -11.255 ... (1 Reply)
Hi,
I have a files in a directory as below :-
ls -1
mqdepth-S1STC02
proc-mq-S1STC01
proc-mq-S1STC02
proc-mq-S1STC03
Whereever i have S1STC i need to copy them into new file with file name S2STC.
expected output :-
ls -1
mqdepth-S2STC02
proc-mq-S2STC01
proc-mq-S2STC02... (3 Replies)
hi all,
i had the below script
x=`cat input.txt |wc -1`
awk 'NR>1 && NR<'$x' ' input.txt > output.txt
by using above script i am able to remove the head and tail part from the input file and able to append the output to the output.txt but if i run it for second time the output is... (2 Replies)
I have a txt file with a list of error messages in a xml tag format, and each error message is separated with a identifier(endresult).Need to split that and copy and create a new html file.Error message has some special character. how to escape the special character and insert my data into the... (7 Replies)
Discussion started by: DevAakash
7 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)