I have two variable columns 1 and 2 , and their respective groups in 3 and 4
I want to rearrange the rows in such a way that all similarly grouped (var1 var2) pairs are together . The similarity rule is (gr1 gr2) pair is the same as (gr2 gr1) pair.
For example
the variable pair (a b) has group (g and h) , group (g and h) pair is equivalent to group (h and g) pair. Since variables (c d) has group pair of ( h and g) also equiavalent to (g and h), these can be clubbed together.
In other words columns $3"__"$4 is the same as $4"__"$3
So my desired output is
To achieve this I`m trying to put the last 2 columns in an array and output in a sorted way. Then I can sort by the last columns and get my result, , but it gives me a blank output.
please assist, row order doesn't matter as long as similar groups are togther. Please note this is made up data, and groups have no alpha or numeric pattern.
I have a file that is semi-colon delimited and the column headers are always the same but the column number is totally random each time this file is generated. I don't have the skills to make a script for this so maybe someone can help.
I would like to be able to take this file which has over... (11 Replies)
I wrote script in bash which generates this report:
User1,admin,rep,User2,shell,path1,x1,r1
User2,admin,rep,User7,shell,path1,x1,r1
User3,admin,rep,User4,shell,path1,x1,r1
User4,admin,rep,User3,shell,path1,x1,r1
User5,admin,rep,User1,shell,path1,x1,r1
User6,admin,rep,User5,shell,path1,x1,r1... (6 Replies)
hi!
in awk, i have a file like this:
Trace1: WRIT,Trace2: BLAN,Trace3: BLAN,
-47.2120018005371,,,39815.4809027778
-46.3009986877441,,,39815.4809027778
-46.277000427246,,,39815.4809143519
-46.7389984130859,,,39815.4809259259
-46.3460006713867,,,39815.4809259259... (10 Replies)
Hello, I have the following problem
I have two columns with numbers arranged as follows:
x1 y1
x2 y2
....
....
x250 y250
Now I need them arranged as follows:
"string a"
x1 y1
x1 y2
"string b"
"string a"
x1 y2
x2 y2 (3 Replies)
Hi
I have the input file following like this
"AIX"
"AIX 6.0"
"AIX 7.0"
"Redhat 8"
"Redhat 9"
"Redhat 5.0 Enterprise Linux"
"Sun Solaris 9"
"Sun Solaris 10",
"Sun Microsystems"
"Oracle"
.................................Like this 2000 lines
I need to convert this input into... (5 Replies)
Hi all,
I am a newbie to awk and trying to learn by doing examples.
I got stuck at this relatively simple conversion.
The start file looks like:
1 2 "t1"
1 3 "h1"
2 1 "h1"
2 2 "h2"
and I want to convert it into
1 t1:2, h1:3;
2 h1:1, h2:2;
Thanks. (9 Replies)
Hi,
I am required to arrange columns of a file i.e make the 15th column into the 1st column.
I am doing
awk 'begin {fs=ofs=","} {print $15,$1,$2,$3,$4,$5,$6,$7,$8,$9,$10,$11,$12,$13,$14}' ad.data>ad.csv
the problem is that column 15 gets to column 1 but it is not comma separated with the... (10 Replies)
I have 1 row which contains abouts 20000 base64 string.
e.g:
/p4bdllBS8qcvW/69GUYej8nEv6gwt7UAYl0g==WZdjwTUQX9UEKsT/zWaZdQ==uI would like rearrange this file by base64 strings. So the output should be this ( 1 string in 1 row):
69GUYej8nEv6gwt7UAYl0g==
WZdjwTUQX9UEKsT/zWaZdQ==How could I do... (4 Replies)
I've a comma separated file with data below:
61401370587,505,1;0402686146,123;2387936.0;20170812
61401370587,505,2;0401296221,34;3.0;20170811
61401370587,505,5;0431169322,123;2387936.0;20170812
My requirement is to group by using 1st,2nd column . And translate the 3rd column's row data... (1 Reply)
As part of some report generation, I've written a script to fetch the values from DB. But, unluckily, for certain Time ranges(1-9.99,10-19.99 etc), I don't have data in DB.
In such cases, I would like to write zero (0) instead of empty. The desired output will be exported to csv file.
... (1 Reply)
Discussion started by: kumar_karpuram
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)