06-27-2012
What about rest of the characters 11-...? Should they be in 3rd column?
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1. Shell Programming and Scripting
Hi all,
Am new to scripting. So i just need your ideas to help me out. Here goes my requirement.
I have two csv files
1.csv 2.csv
abc,1.24 abc,1
def,2.13 def,1
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I want to duplicate a row if found two or more values in a particular column for corresponding row which is delimitted by comma.
Input
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abc,line two, value1, value2
abc,line three,value1
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abc,line two, value1
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3. Shell Programming and Scripting
I am new to this forum and this is my first post.
I am looking at an old post with exactly the same name. Can not paste URL because I do not have 5 posts
My requirement is exactly opposite.
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5. Shell Programming and Scripting
Hello,
I need some sort of way to extract every date contained in a file, and count how many of those dates there are.
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6. Shell Programming and Scripting
Hi Friends,
I have a file1
file1.txt
1ABC 13478 aqjerh 473 343
2hej 478 5775 24578 23892
3fhd fg 847 brjkb f99345 487
4eh ehjk 84 47589 8947 234
5784 487 738 52895 8975
6 57489 eghe9 4575 859479
7fnbd 4y5 4iuy 458 h irh
8fjdg 74 7845 8475 5789
94yr 48yr 4hr erhj reh... (3 Replies)
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7. Linux
I have a .CSV file with the below format:
"column 1","column 2","column 3","column 4","column 5","column 6","column 7","column 8","column 9","column 10
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8. Shell Programming and Scripting
input.csv:
Field1,Field2,Field3,Field4,Field4
abc ,123 ,xyz ,000 ,pqr
mno ,123 ,dfr ,111 ,bbb
output:
Field2,Field4
123 ,000
123 ,111
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9. Linux
cat sample.csv
ID,Name,no
1,AAA,1
2,BBB,1
3,AAA,1
4,BBB,1
cut -d',' -f2 sample.csv | sort | uniq
this gives only the 2nd column values
Name
AAA
BBB
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Discussion started by: sanvel
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Hi Team,
Pls help to get the desired output.
I have a input like below
nodecount=10
host=na7-db1-1-chi
nodecount can be 10 or 8 based on this we need a output (in single line) like below
na7-db1-1-chi:A na7-db1-2-chi:B na7-db1-3-chi:C na7-db1-4-chi:D na7-db1-5-chi:E... (4 Replies)
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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)