Split column using awk in a text file Post: 302811127

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Split a file with no pattern -- Split, Csplit, Awk

I have gone through all the threads in the forum and tested out different things. I am trying to split a 3GB file into multiple files. Some files are even larger than this. For example: split -l 3000000 filename.txt This is very slow and it splits the file with 3 million records in each...

2. Shell Programming and Scripting

How to split a fixed width text file into several ones based on a column value?

Hi, I have a fixed width text file without any header row. One of the columns contains a date in YYYYMMDD format. If the original file contains 3 dates, I want my shell script to split the file into 3 small files with data for each date. I am a newbie and need help doing this.

3. Shell Programming and Scripting

using awk to substitute data in a column delimited text file

using awk to substitute data in a column delimited text file hello i would like to use awk to do the following calculation from the following snippet. input file C;2390 ;CV BOUILLOTTE 2L 2FACES NERVUREES ;1.00 ;3552612239004;13417 ;25 ;50 ; 12;50000 ; ; ...

4. UNIX for Dummies Questions & Answers

Using awk to log transform a column in a tab-delimited text file?

How do I use awk to log transform the fifth column of a tab-delimited text file? Thanks!

5. Shell Programming and Scripting

Split text separated by ; in a column into multiple columns

Hi, I need help to split a long text in a column which is separated by ; and i need to print them out in multiple columns. My input file is tab-delimited and has 11 columns as below:- aRg02004 21452 asdfwf 21452 21452 4.6e-29 5e-29 -1 3 50 ffg|GGD|9009 14101.10 High class -node. ; ffg|GGD|969...

6. Shell Programming and Scripting

awk to sum a column based on duplicate strings in another column and show split totals

Hi, I have a similar input format- A_1 2 B_0 4 A_1 1 B_2 5 A_4 1 and looking to print in this output format with headers. can you suggest in awk?awk because i am doing some pattern matching from parent file to print column 1 of my input using awk already.Thanks! letter number_of_letters...

7. Shell Programming and Scripting

How to split a file into column with awk?

The following is my code nawk -F',' ' BEGIN { printf "MSISDN,IMSI,NAM,TS11,TS21,TS22,OBO,OBI,BAIC,BAOC,BOIC,BOIEXH,APNID0,APNID1,APNID2,APNID3,APNID0,CSP,RSA\n" } { for(i=1; i<=NF; i++) { split($i,a,":") gsub(" ","", a) printf "%s;",a } printf "\n" }'HLR_DUMP_BZV >> HLR_full This is...

8. Shell Programming and Scripting

Awk: split column if special characters

Hi, I've data like these: Gene1,Gene2 snp1 Gene3 snp2 Gene4 snp3 I'd like to split line if comma and then print remaining information for the respective gene. My code: awk '{ if($1 ~ /,/){ n = split($0, t, ",")

9. Shell Programming and Scripting

awk split columns to row after N number of column

I want to split this with every 5 or 50 depend on how much data the file will have. And remove the comma on the end Source file will have 001,0002,0003,004,005,0006,0007,007A,007B,007C,007E,007F,008A,008C Need Output from every 5 tab and remove the comma from end of each row ...

10. UNIX for Beginners Questions & Answers

Using awk to split a column into two columns

Hi, I am trying to split the following output into two columns, where each column has Source: Destination: OUTPUT TO FILTER $ tshark -r Capture_without_mtr.pcap -V | awk '/ (Source|Destination): /' | more Source: x.x.x.x Destination: x.x.x.x Source:...

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. UNIX for Dummies Questions & Answers

Split a file with no pattern -- Split, Csplit, Awk

Discussion started by: madhunk

2. Shell Programming and Scripting

How to split a fixed width text file into several ones based on a column value?

Discussion started by: bhanja_trinanja

3. Shell Programming and Scripting

using awk to substitute data in a column delimited text file

Discussion started by: iindie

4. UNIX for Dummies Questions & Answers

Using awk to log transform a column in a tab-delimited text file?

Discussion started by: evelibertine