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Top Forums UNIX for Advanced & Expert Users Unix Bash: substitute columns in .csv using other .csv columns Post 302485076 by abhivyas on Tuesday 4th of January 2011 07:50:05 AM
Old 01-04-2011
Unix Bash: substitute columns in .csv using other .csv columns

Hi All,

I have two .csv's

input.csv having values as (7 columns)
Code:
ABC,A19907103,ABC DEV YUNG,2.17,1000,2157,07/07/2006
XYZ,H00213850,MM TRUP HILL,38.38,580,23308,31/08/2010

output.csv having (25 columns)
Code:
A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y
A,B,C,D,E,F,G,H,I,J,K,L,M,N,O,P,Q,R,S,T,U,V,W,X,Y

I want to put values of input.csv into output.csv at different column positions

Mapping:
Code:
1 2 3 4 5 6 7
7 11 13 15 20 21

Can you please help suggest how this can be done. I tried using awk but unsuccessful

If I just try to substitute output.csv's Column7 with input.csv's column 1.. but get no output with below command.
Code:
/usr/xpg4/bin/awk 'BEGIN {FS="," ; OFS=","} FNR == NR {a[FNR] = $B; next} $A = a[FNR]' B=2 A=4 input.csv output.csv

Please help or provide a good link. Thanks a lot


Moderator's Comments:
Mod Comment Please use code tags when posting data and code samples!

Last edited by Franklin52; 01-04-2011 at 09:06 AM..
 

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obd2csv(1)						      General Commands Manual							obd2csv(1)

NAME
obd2csv - Convert obdgpslogger(1) logs to csv files SYNOPSIS
obd2csv [ options ] DESCRIPTION
Convert obdgpslogger(1) logs to csv files OPTIONS
-o|--out <output filename> Output to this .csv file -d|--db <database> Work from logs stored in this database file -s|--start <time> Only dump rows more recent than this -e|--end <time> Only dump rows older than this -z|--gzip gzip compress output using zlib [if available] -v|--version Print out version number and exit. -h|--help Print out help and exit. NOT OPTIONS
These options aren't intended for end-users, they're for the GUI. -p|--progress Print out progress. It will occasionally print a number in the range [0..100], indicating progress percentage. SEE ALSO
obdgpslogger(1), obd2kml(1), obd2gpx(1), obdsim(1), obdgui(1), obdlogrepair(1) AUTHORS
Gary "Chunky Ks" Briggs <chunky@icculus.org> obd2csv(1)
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