My String variable is holding value as - abc"def
I want to replce " with \"
I tried with awk :
echo $var | awk '{gsub(/"/,"\"");print}'
and I am getting an error, `)' is not expected. (1 Reply)
Hi guys,
i have a pattern that i am searching in a file and i want to extract some of this pattern
...
module TS1N65ULPA96X32M4 (
....
i want to extract only TS1N65ULPA96X32M4 part and i do the following
sed 's/module \(x*\).*/\1/' name_of_file
but this is not quite right.
could... (6 Replies)
Hi all
I need to replace all characters in a file except for the matching pattern
eg.
I need to replace all character with '*' except for the pattern "abc"
Input
"sdfhgsdf abc ##%$#abcsdfh sdfjkfff"
Output
"******abc******abc*************"
Request for single liner solution (1 Reply)
Hi all,
I been searching the forum for a few hours now and can't find exactly what I need to replace text between two patterns. Below is what I want to accomplish
/* Any text between these to sympols */
changed to....
/* This will be the new text to change */
..and I'm... (3 Replies)
Hi,
I have a file which contains the below data. I want to search for a pattern server="http://bushby.mis.amat.com:12440" and remove it from the file.
Please let me know how can i do this.
<Object name="reverse-proxy-/endeavour/">
ObjectType fn="http-client-config" timeout="1800"... (6 Replies)
Hi All
I am having pipe seperated inputs like
Adam|PeteR|Josh|PEter
Nick|Rave|Simon|Paul
Steve|smith|PETER|Josh
Andrew|Daniel|StAlin|peter
Rick|PETer|ADam|RAVE
i want to repleace all the occurrence of peter (in any case pattern PeteR,PEter,PETER,peter,PETer) with Peter so that output... (5 Replies)
i have little challenge, help me out.i have a file where i have a value declared and and i have to replace the value when called. for example i have the value for abc and ccc. now i have to substitute the value of
value abc and ccc in the place of them.
Input File:
go to &abc=ddd;
if... (16 Replies)
Hi,
I have a text file with lots of text (strings,numbers,special characters etc). I am trying to replace any occurrence of these strings :
90%
91%
92%
....
100%
I want to replace them with :
"90%"
"91%"
"92%"
....
"100%"
I am now using 10 sed commands for replacement but I... (12 Replies)
Discussion started by: ctrld
12 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)