Hi ,
I have this type of files:-
BGH.28OCT2008.00000001.433155.001
BGH.28OCT2008.00000002.1552361.001
BGH.28OCT2008.00000003.1438355.001
BGH.28OCT2008.00000004.1562602.001
Inside them contains the below:
5Discounts
6P150 - Max Total Usage RM150|-221.00
P150 EPP - Talktime RM150... (5 Replies)
is there a way with sed to removed more than one set of lines in one line?
so i mean
sed ${firstElem},${lastIndex}d web.xml > web1.xml
this will delete lines between ${firstElem},${lastIndex}
i want in the same line to do somethinkg like this (doesn't work so far)
sed... (3 Replies)
Hi ,
I have file which consists of multiple new lines. I need to identify the new line in every row of the file and remove it. It is having record delimiter as "|" and final delimiter of the line is "end" Can anyone from the forum suggest me how to remove the news lines from entire file?
example... (11 Replies)
Hi,
I have a huge file which has Lacs of lines. File system got full.
I want your guys help to suggest me a solution so that I can remove all lines from that file but not last 50,000 lines. I want solution which can remove lines from existing file so that I can have some space left with. (28 Replies)
Hi
I have a text file named main.txt with 10,000 lines. I have another file with a list of line numbers (around 1000) of the lines to be deleted from main.txt file.
I tried with sed but it removes only a range of line numbers.
Thanks for any help!! (1 Reply)
Not sure how I can accomplish this. I would like to remove all interfaces that have the commands I would like to see: switchport port-security, spanning-tree portfast. One line is no problem.
interface FastEthernet0/8
spanning-tree portfast
interface FastEthernet0/9
spanning-tree... (4 Replies)
GM,
I have an issue at work, which requires a simple solution. But, after multiple attempts, I have not been able to hit on the code needed.
I am assuming that sed, awk or even perl could do what I need.
I have an application that adds extra blank page feeds, for multiple reports, when... (7 Replies)
I want to clean a html file.
I try to remove the script part in the html and remove the rest of tags and empty lines.
The code I try to use is the following:
sed '/<script/,/<\/script>/d' webpage.html | sed -e 's/<*>//g' | sed '/^\s*$/d' > output.txt
However, in this method, I can not... (10 Replies)
Hi,
I came across one issue recently where output from one of the columns of the table from where i am creating input file has newline characters hence, record in the file is spread over multiple lines. Fields in the file are separated by pipe (|) delimiter. As header will never have newline... (4 Replies)
Discussion started by: Prathmesh
4 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)