Join two files Post: 302900831

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1. Shell Programming and Scripting

Join Files

Hi Gurus, I have to join two flat files based on two key field columns. I concatenated two key fields and i tried the join command. It is working fine. But, without using temporary files can't i use like this: join -t ':' `awk -F ":" '{ printf("%s%s:%s\n", $1,$2, $0) }' file1` `awk -F ":" '{...

2. Shell Programming and Scripting

join files

Hi , I want to join 2 files based on 2 column join condition. a11 john 2230 5000 a12 XXX 2230 A B 200 345 Expected O/P John 2230 5000 A B 200 I have tried this awk 'NR==FNR{a=$1;next}a&&sub($1,a)' a11 a12 > a13

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join two files

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Join 2 files with multiple columns: awk/grep/join?

Hello, My apologies if this has been posted elsewhere, I have had a look at several threads but I am still confused how to use these functions. I have two files, each with 5 columns: File A: (tab-delimited) PDB CHAIN Start End Fragment 1avq A 171 176 awyfan 1avq A 172 177 wyfany 1c7k A 2 7...

5. Shell Programming and Scripting

Join two files

i have two files and i want to join the contents like: file a has content my name is i am i work at and file b has John sims 43 years old maximu ltd and i want to join the two files to get a third file with content reading my name is John sims i am 43 years old i work at...

6. UNIX for Dummies Questions & Answers

how to join two files using "Join" command with one common field in this problem?

file1: Toronto:12439755:1076359:July 1, 1867:6 Quebec City:7560592:1542056:July 1, 1867:5 Halifax:938134:55284:July 1, 1867:4 Fredericton:751400:72908:July 1, 1867:3 Winnipeg:1170300:647797:July 15, 1870:7 Victoria:4168123:944735:July 20, 1871:10 Charlottetown:137900:5660:July 1, 1873:2...

7. UNIX for Dummies Questions & Answers

How to use the the join command to join multiple files by a common column

Hi, I have 20 tab delimited text files that have a common column (column 1). The files are named GSM1.txt through GSM20.txt. Each file has 3 columns (2 other columns in addition to the first common column). I want to write a script to join the files by the first common column so that in the...

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Join 2 files

I have file1.txt BGE179W1 BGE179W2 BGE179W3 BGE187W1 BGE187W2 BGE187W3 BGE194W1 BGE194W2 BGE194W3 BGE227W1 BGE227W2 BGE227W3 BGE288W1 BGE288W2 BGE288W3 BGE650W1 ---------- Post updated at 12:41 AM ---------- Previous update was at 12:39 AM ----------

9. Shell Programming and Scripting

Join two files

Hi, I have two files Files, FileA and FileB which are attached.Each row in the files have 8 tab delimited columns. The two files have to be compared and joined based on first two columns. The resulting file FileC should have: 1. if the data in the first two columns is same in both the...

10. Shell Programming and Scripting

Join, merge, fill NULL the void columns of multiples files like sql "LEFT JOIN" by using awk

Hello, This post is already here but want to do this with another way Merge multiples files with multiples duplicates keys by filling "NULL" the void columns for anothers joinning files file1.csv: 1|abc 1|def 2|ghi 2|jkl 3|mno 3|pqr file2.csv: 1|123|jojo 1|NULL|bibi...

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ppmtopgm

ppmtopgm(1)						      General Commands Manual						       ppmtopgm(1)

NAME

       ppmtopgm - convert a portable pixmap into a portable graymap

SYNOPSIS

       ppmtopgm [ppmfile]

DESCRIPTION

       Reads  a  portable  pixmap  as  input.  Produces a portable graymap as output.  The output is a "black and white" rendering of the original
       image, as in a black and white photograph.  The quantization formula used is .299 r + .587 g + .114 b.

       Note that although there is a pgmtoppm program, it is not necessary for simple conversions from pgm to ppm , because any  ppm  program  can
       read  pgm  (and	pbm  ) files automatically.  pgmtoppm is for colorizing a pgm file.  Also, see ppmtorgb3 for a different way of converting
       color to gray.  And ppmdist generates a grayscale image from a color image, but in a way that makes it easy to differentiate  the  original
       colors, not necessarily a way that looks like a black and white photograph.

QUOTE

       Cold-hearted orb that rules the night
       Removes the colors from our sight
       Red is gray, and yellow white
       But we decide which is right
       And which is a quantization error.

SEE ALSO

       pgmtoppm(1),ppmtorgb3(1),rgb3toppm(1),ppmdist(1),ppm(5),pgm(5)

AUTHOR

       Copyright (C) 1989 by Jef Poskanzer.

								   10 April 2000						       ppmtopgm(1)

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Join, merge, fill NULL the void columns of multiples files like sql "LEFT JOIN" by using awk

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ppmtopgm