Hi All,
i have a csv file .
In the 7th column i have data that has line feed in it.
Requirement is to remove the line feed from the 7th column whenever it appears
There are 11 columns in the file
C1,C2,C3,C4,C5,C6,C7,C8,C9,C10,C11
The value in C7 contains line feed ( Alt + Enter ),... (2 Replies)
Hi experts,
My csv file looks like this
U;cake;michael;temp;;;;
U;bread;john;temp;;;;
U;cocktails;sarah;temp;;;;
I'd like to change the value fo 2nd column to cf+random number , which will look maybe something like this
U;cf20187;michael;temp;;;;
U;cf8926;john;temp;;;;... (7 Replies)
Hi All
I have one query,say i have a requirement like the below code should be
move to diffent files whose maximum lines can be of 10 lines.Say in the below example,it consist of 14 lines.
This should be moved logically using the data in the fisrt coloumn to file1 and file 2.The data of first... (2 Replies)
I have following entries file abc.txt
abc83.out.remote TRUE
abc84.out.remote TRUE
abc85.out.remote TRUE
abc86.out.remote TRUE
Please help me, how do i toggle the entries listed in 2nd column based on the search patterns (abcxx)
abcxx, i can get... (14 Replies)
I have a file
cat 1.txt
AAAA , BBBB , CCCC , DDDD
DFDF , DFDF , DFDF , FDDD
AA11 , DFDF , 0000 , UTIO
ADSD , WERT, 0000 , JKJL
If the 3rd column is not equal to "0000" , then it should replace "0000" with "XXXX" and if its equal to "0000" then print the line as it is.
need help. (9 Replies)
Hello,
Got a CSV file which contains 21 columns
Need to convert the file to Pipe delimiter and Few columns text data contains new line
Example
1,2,3,"ABC" 8" ABC,5,6,7
1,2,3,"ABC"
8" ABC,5,6,7 ( New Line)
1,2,3,""ABC" 8" ABC", 5,6,7
1,2,3,"ABC"
,5,6,7(New line)
Expected... (8 Replies)
Hello,
I am trying to make a awk code that will take 2 files, a txt file like this :
1 1 88 c(1:38, 42, 102)
2 2 128 c(39:41, 43:101, 103:105, 153, 155:189, 292, 344:369)
3 3 84 c(190:249, 603, 606:607, 609:629)
4 4 12 ... (8 Replies)
hi
I have 2 file with more than 10 columns for both
1st file
apple,0,0,0......
orange,1,2,3.....
mango,2,4,5.....
2nd file
apple,2,3,4,5,6,7...
orange,2,3,4,5,6,8...
watermerlon,2,3,4,5,6,abc...
mango,5,6,7,4,6,def.... (1 Reply)
Discussion started by: tententen
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)