07-20-2013
So what have you tried so far to overcome this challenge?
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1. Shell Programming and Scripting
hi,
i wanted to put the output of file f1 into the pattern space of file f2
f1:
wjwjwjwjwjwjwj //these line go in file f2
jwjwjwjwjwjjwjw
wjwjwjwjjwjwjwj
f2:
Pattern_start
__________ //these are the line to be replaced
__________
Pattern_end
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2. Shell Programming and Scripting
Hi everyone.
Could u be so kind and help me with on "simple" shell script?
1. i need to search a file line by line for a pattern.
example of a lines in that file
2947 domain = feD,id = 00 0A 02 48 17 1E 1D 39 DE 00 0E 00,Name
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Add AttFlag = 0
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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
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4. Shell Programming and Scripting
Hi,
I have two files viz,
rak1:
$ cat rak1
rak2:
$ cat rak2
sdiff rak1 rak2 returns:
I want the lines that got modified, changed, or deleted preceding with the section they are in.
I have done this so far: (1 Reply)
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5. Shell Programming and Scripting
Hello,
The following sed command is giving error
sed: -e expression #1, char 13: unknown option to `s'
The sed command is
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Greatings all,
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> hbbvjvj
> jdnnfddllll
> *dgdfhfekwjh*
Box 2 > *aaaaaaa'aj'jjj*
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10. Shell Programming and Scripting
I have a file like below.
2018.07.01, Sunday
09:27 some text 123456789 0 21 0.06 0.07 0.00
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09:39 some text 456789012 1 0.07 0.09 0.09
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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)