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How to append a string by comparing another string?


 
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# 1  
How to append a string by comparing another string?

Hi ,
I have one file like
Code:
BUD,BDL BUDCAR
BUD,BDL BUDLAMP
ABC,CDF,KLT ABISKAR
ABC,CDF,KLT CORNEL
ABC,CDF,KLT KANNAD
JKL,HNM,KTY,KJY JAGAN
JKL,HNM,KTY,KJY HOUSE
JKL,HNM,KTY,KJY KATAK
JKL,HNM,KTY,KJY KOLKA


The o/p should be like
Code:
BUD,BDL BUDCAR,BUDLAMP
ABC,CDF,KLT ABISKAR,CORNEL,KANNAD
JKL,HNM,KTY,KJY JAGAN,HOUSE,KATAK,KOLKA


Last edited by Franklin52; 02-13-2013 at 05:05 AM.. Reason: Please use code tags for data and code samples
# 2  
Code:
awk     ' {Ar[$1] = Ar[$1](Ar[$1]?",":"")$2}
         END {for (i in Ar) print i, Ar[i]}
        ' file
BUD,BDL BUDCAR,BUDLAMP
JKL,HNM,KTY,KJY JAGAN,HOUSE,KATAK,KOLKA
ABC,CDF,KLT ABISKAR,CORNEL,KANNAD

As you're posting quite some similar questions, why not learn awk/sed/shell yourself?
This User Gave Thanks to RudiC For This Post:
# 3  
If sorted:
Code:
awk 'p!=$1{if(p)print s; s=$0; p=$1; next}{s=s "," $2} END{print s}' file


Last edited by Scrutinizer; 02-13-2013 at 05:23 AM..
This User Gave Thanks to Scrutinizer For This Post:
# 4  
Thanks..

Can you please replace the space with pipe(|) in the o/p file?

Code:
BUD,BDL|BUDCAR,BUDLAMP
ABC,CDF,KLT|ABISKAR,CORNEL,KANNAD
JKL,HNM,KTY,KJY|JAGAN,HOUSE,KATAK,KOLKA


Last edited by Scrutinizer; 02-13-2013 at 05:52 AM.. Reason: code tags
# 5  
Like so?
Code:
awk 'p!=$1{if(p)print s; s=$1 "|" $2; p=$1; next}{s=s "," $2} END{print s}' infile

This User Gave Thanks to Scrutinizer For This Post:

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