Creating duplicates in awk Post: 302795769

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk to find duplicates in 2nd field

I want to find duplicates in file on 2nd field i wrote this code: nawk '{a++} END{for i in a {if (a>1) print}}' temp Could not find whats wrong with this. Appreciate help

2. Shell Programming and Scripting

Creating a new line using awk?

Is there a way while using awk to print out lines, to create a new line after every line that is being displayed?

3. Shell Programming and Scripting

Awk Help - duplicates in $1 that match x & y in $2

I'm primarily a "Windows" systems administrator whose been getting his toes in the Linux waters. I am new to programming and advanced scripting so please bear with me and my incomplete example below. I have exported all entries from our DNS zones. I used sed to remove everything other than the...

4. Shell Programming and Scripting

awk statement to eliminate the duplicates

consider the below output cat tablextract2.sql CREATE PROCEDURE after72DeleteTgr(id int) BEGIN END $$ Delimiter ; CREATE PROCEDURE after72DeleteTgr(id int) BEGIN END $$ Delimiter ; # # proc_name1="after72DeleteTgr" # # echo "`awk '{if($3~v){a=1}}a;/elimiter\|DELIMITER/{exit}'...

5. Shell Programming and Scripting

Find duplicates in column 1 and merge their lines (awk?)

Hi, I have a file (sorted by sort) with 8 tab delimited columns. The first column contains duplicated fields and I need to merge all these identical lines. My input file: comp100002 aaa bbb ccc ddd eee fff ggg comp100003 aba aba aba aba aba aba aba comp100003 fff fff fff fff fff fff fff...

6. Shell Programming and Scripting

Awk: Remove Duplicates

I have the following code for removing duplicate records based on fields in inputfile file & moves the duplicate records in duplicates file(1st Awk) & in 2nd awk i fetch the non duplicate entries in inputfile to tmp file and use move to update the original file. Requirement: Can both the awk...

7. Shell Programming and Scripting

awk remove first duplicates

Hi All, I have searched many threads for possible close solution. But I was unable to get simlar scenario. I would like to print all duplicate based on 3rd column except the first occurance. Also would like to print if it is single entry(non-duplicate). i/P file 12 NIL ABD LON 11 NIL ABC...

8. Shell Programming and Scripting

awk - Remove duplicates during array build

Greetings Experts, Issue: Within awk script, remove the duplicate occurrences that are space (1 single space character) separated Description: I am processing 2 files using awk and during processing, I am building an array and there are duplicates on this; how can I delete the duplicates...

9. Shell Programming and Scripting

awk to Sum columns when other column has duplicates and append one column value to another with Care

Hi Experts, Please bear with me, i need help I am learning AWk and stuck up in one issue. First point : I want to sum up column value for column 7, 9, 11,13 and column15 if rows in column 5 are duplicates.No action to be taken for rows where value in column 5 is unique. Second point : For...

10. Shell Programming and Scripting

awk and seen to report duplicates

I have this file: @Muestra-1 agctgcgagctgcgacccgggttatataggaagagacacacacaccccc + !@$#%^&*()@^#&HH!&*(@&#*(FT^%$&*()*&^%@ @Muestra-2 agctgcgagctgcgacccgggttatataggaagagacacacacaccccc + !@$#%^&*()@^#&HH!&*(@&#*(FT^%$&*()*&^%@ @Muestra-3 agctgcgagctgcgacccgggttatataggaagagacacacacaccccc +...

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)

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Awk to find duplicates in 2nd field

Discussion started by: pinnacle

2. Shell Programming and Scripting

Creating a new line using awk?

Discussion started by: puttster

3. Shell Programming and Scripting

Awk Help - duplicates in $1 that match x & y in $2

Discussion started by: Omaplata

4. Shell Programming and Scripting

awk statement to eliminate the duplicates

Discussion started by: vivek d r