there are 300 files in a directory , some of these files has a word "error" , I word to change this word to "message" , can advise what can i do ? thx. (5 Replies)
How can i replace a particular word from string i.e.
var="shiv_dutt_para_shar"
wrd="para"
rep_wrd="PARA"
what i am trying to do that first i'll search if $var catains #wrd or not.
if it contains then i've to replace $wrd with $rep_wrd.
I have tried following
#!/bin/sh
t="shiv... (5 Replies)
I am trying to find words in a text with a certain ending with sed and replace them with themselves but wrapped in tabs
ex.: The fish swims in the water. -> searching for -ms ending
The fish <tab>swims<tab>in the water.
I've been trying all sorts of commands and get either an error... (5 Replies)
Hello Gurus,
I have a file which has foll contents scattered:
,TotUnasgndNetAmt
FROM DEV_EIS_T.Wkly_SO_CCD_MOSumSnpsht
WHERE
CalDayRunDt = '2010-07-21'
UNION ALL
SELECT
CalDayRunDt
,BusWkCd
,'N'
I want to replace 2010-07-21 that starts after ' and ends before... (8 Replies)
Hi
I have a file with hundreds of lines, some of the lines have word INITIAL followed by some numbers like
....INITIAL 1234535 ....
....INITIAL 5768644 ....
I would like to replace the number after word INITLA with 4K how can I do it? Cant get my heard around this! The string is always... (3 Replies)
Hi,
I want to replace a word in a file which occurs after a particular word.
For example :
$cat file.txt
CASE
WHEN
AND c1 = 'I'
AND c2= '2'
THEN 1
WHEN
AND c1= 'I'
AND c2= '0'
THEN 2
So in this example i want to replace... (4 Replies)
Can someone tell me how I can do this?
e.g:
Say file1.txt contains:
today is monday
the 22 of
NOVEMBER
2010
and file2.txt contains:
the
11th
month
of
How do i replace the word NOVEMBER with (5 Replies)
Hi All,
I have a file in which a number of lines are starting with similar first word but different next words.
I want to replace the any nth word(not 1st or 2nd) with another word.
Eg:- My file contains are like this:-
Ram is a boy.
Ram is a good boy.
Ram plays cricket.
Here I want to... (2 Replies)
Hi All
i need to replace the url1 inside <remote> tag in below xml in first instance and in the second instance with url2.
any help appreciated
<locations>
<hudson.scm.SubversionSCM_-ModuleLocation>
<remote>https://svn2015.com/svn/repos/internalshard</remote>
... (4 Replies)
I have a file comp.pkglist which mention package version and release . In 'version change' and 'release change' line there are two versions 'old' and 'new' Version Change: --> Release Change: -->
cat comp.pkglist
Package list: nss-util-devel-3.28.4-1.el6_9.x86_64
Version Change: 3.28.4 -->... (1 Reply)
Discussion started by: Paras Pandey
1 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)