Sponsored Content
Top Forums Shell Programming and Scripting Calculate the difference of two columns and keep the line with specific value Post 302757317 by rdrtx1 on Thursday 17th of January 2013 11:09:05 AM
Old 01-17-2013
In example: 6 cols, diff > .04? If so, try:
Code:
awk '
NR==FNR {a[$1$2$3$4$5]=$NF; next}
a[$1$2$3$4$5] {d=sprintf("%.2f",sqrt((a[$1$2$3$4$5]-$NF)**2)); if (d>.04) {$NF=d; print $0}}
' file1 file2

This User Gave Thanks to rdrtx1 For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to calculate the time difference.

Hi All, I've written a script which reads all the systems backup information and saves it in a log file. ssh -l ora${sid} ${primaryhost} "tail -1 /oracle/$ORACLE_SID/sapbackup/back$ORACLE_SID.log" | awk '{print $3,$4,$5,$6}' >> ${RESULTFILE} The output comes as below: 2008-09-30 06.00.01... (2 Replies)
Discussion started by: suri.tyson
2 Replies

2. Shell Programming and Scripting

merge columns into one line after a specific pattern

Hi all, im a linux newbie, plz help! I have a file - box -------- Fox-2 -------- UF29 zip42 -------- zf-CW SNF2_N Heli_Z -------- Fox -------- Kel_1 box (3 Replies)
Discussion started by: sam_2921
3 Replies

3. Shell Programming and Scripting

How to calculate the difference between two adjacent columns?

Dear All, I need to find the difference between two adjacent columns. The file is having 'i' columns and i need to find the difference between two adjacent columns (like $1 difference $2; $2 difference $3; .... and $(i-1) difference $i). I have used the following coding awk '{ for (i=1; i<NF;... (7 Replies)
Discussion started by: Fredrick
7 Replies

4. Shell Programming and Scripting

Calculate age of a file | calculate time difference

Hello, I'm trying to create a shell script (#!/bin/sh) which should tell me the age of a file in minutes... I have a process, which delivers me all 15 minutes a new file and I want to have a monitoring script, which sends me an email, if the present file is older than 20 minutes. To do... (10 Replies)
Discussion started by: worm
10 Replies

5. UNIX for Dummies Questions & Answers

How to match on phrase at beginning of line and specific columns?

Here is my file: 700 7912345678910 61234567891234567891 700 8012345678910 61234567891234567891 I want to pull all lines that begin with '700' only if columns 11-12 are '79'. My code so far only pulls the '79', not the whole line: grep ^700 file1 | cut -c 11,12 |... (7 Replies)
Discussion started by: Scottie1954
7 Replies

6. Shell Programming and Scripting

How to calculate difference:?

Experts, file1 : Want to find the difference of $3 field from next line's 3rd field, The difference to be calculated from next lines 3rd field, to current lines lines 3rd field. file1 : Jun24_2013.06242013 3301244928 3133059904 167370640 95% Jun25_1124.06252013 3301244928... (4 Replies)
Discussion started by: rveri
4 Replies

7. Shell Programming and Scripting

Calculate date difference

Hi All Can you please help me with UNIX script code that will work with ksh shell on UNIX server My Requirement Time1: 09/17/13101536 Time2: 09/16/13101536 I want to calculate the difference in minutes for the dates with format given above. I have a requirement to wait for... (5 Replies)
Discussion started by: jimmyb
5 Replies

8. Shell Programming and Scripting

Calculate time difference

I have time in a file in HH:MM:SS format as it contents(its not the file creation time). i need this to be converted to epoch time or time since 1970. The time is written into that file by a script, which i cannot modify. Im using AIX machine $ cat abc.txt 10:29:34 (2 Replies)
Discussion started by: gpk_newbie
2 Replies

9. Shell Programming and Scripting

Calculate percentage difference between two columns

I have a input text file in this format: ITEM1 10.9 20.1 ITEM2 11.6 12 ITEM3 14 15.7 ITEM5 20 50.6 ITEM6 25 23.6 I want to print those lines which have more than 5% difference between second and third columns. (8 Replies)
Discussion started by: ctrld
8 Replies

10. Shell Programming and Scripting

awk to calculate difference of split and sum the difference

In the awk I am trying to subtract the difference $3-$2 of each matching $4 before the first _ (underscore) and print that value in $13. I think the awk will do that, but added comments. What I am not sure off is how to add a line or lines that will add sum each matching $13 value and put it in... (2 Replies)
Discussion started by: cmccabe
2 Replies
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)
All times are GMT -4. The time now is 06:35 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy