Hi,
I needs to split *.txt files from single directory depends on the some mutltiple input values. i have wrote the code like below
for file in *.txt
do
grep -i -h "value1|value2" $file > $file;
done.
My requirment is more input values needs to be given in grep; let us say 50... (3 Replies)
hi,
i am facing a problem in merging two files using awk,
the problem is as stated below,
file1:
A|B|C|D|E|F|G|H|I|1
M|N|O|P|Q|R|S|T|U|2
AA|BB|CC|DD|EE|FF|GG|HH|II|1
....
....
....
file2 :
1|Mn|op|qr (2 Replies)
I've two files with data like below:
file1.txt:
AAA,Apples,123
BBB,Bananas,124
CCC,Carrot,125
file2.txt:
Store1|AAA|123|11
Store2|BBB|124|23
Store3|CCC|125|57
Store4|DDD|126|38
So,the field separator in file1.txt is a comma and in file2.txt,it is |
Now,the output should be... (2 Replies)
Hi Gurus,
Lets say i have a file with some 30 records...
How can i split that file into 3 files
Also it shud be dynamic in the sense..
I wouldnt mind if file 1 has 15, file 2 has 10 and file 3 has 5....
Please help..
Thanks (6 Replies)
First, thanks for the help in previous posts... couldn't have gotten where I am now without it!
So here is what I have, I use AWK to match $1 and $2 as 1 string in file1 to $1 and $2 as 1 string in file2. Now I'm wondering if I can extend this AWK command to incorporate the following:
If $1... (4 Replies)
Hello all
I have a file which has around 80 million records, I want to split it to 12 equal files, I tried using the split command but it is allowing me to split according to number of lines or by size. Is there a way i can split the file into 12 files without worrying about the number of lines... (7 Replies)
Hi Friends,
Need Help. I have file1.txt as
File1.txt
|123|A|7267|Hyder|Cross|Sell|7801
|995|A|7051|2008|Lunar|New|Year|Promotion|7801
|996|A|7022|Q108|Targ|Prospect|&|SSCC|Savings|Promo|7801
|997|A|7182|Q1|Feb-Apr|08|Credit|ITA|PA|SBA|Campaign|7801
File2.txt... (7 Replies)
Hi Freinds,
I have 2 files . one is source.txt and second one is target.txt. I want to keep source.txt as baseline and compare target.txt. please find the data in 2 files and Expected output.
Source.txt
1|HYD|NAG|TRA|34.5|1234
2|CHE|ESW|DES|36.5|134
3|BAN|MEH|TRA|33.5|234... (5 Replies)
Hi,
Very good wishes to all!
Please help to provide the shell script for generating the record counts in filed wise from the .csv file
My question:
Source file:
Field1 Field2 Field3
abc 12f sLm
1234 hjd 12d
Hyd 34
Chn
My target file should generate the .csv file with the... (14 Replies)
i use the split command to split a one terabyte backup file into 10 chunks of 100 GB each. The files are split one after the other. While the files is being split, I will like to scp the files one after the other as soon as the previous one completes, from server A to Server B. Then on server B ,... (2 Replies)
Discussion started by: malaika
2 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)