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Shell Programming and Scripting

Transposing rows into columns

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# 1  
Old 02-08-2011
Transposing rows into columns
I have a file like the one given below

Code:
P1|V1|V2
P1|V1|V3
P1V1|V2
P2|V1|V4
P2|V2|V6
P2|V1|V4



I want it convert to

Code:
P1|V1|V2|V2|V3
P2|V1|V4|V2|V6

2nd and 3rd column should be considered as together and so the tird row is duplicate

Any ideas?
Last edited by radoulov; 02-08-2011 at 04:27 PM.. Reason: Code tags, please!
# 2  
Old 02-08-2011
Can you provide more info?
A better example would really help.
Too many of same terms.
# 3  
Old 02-08-2011
Is this what you want?
Code:
echo "P1|V1|V2
P1|V1|V3
P1|V1|V2
P2|V1|V4
P2|V2|V6
P2|V1|V4" |awk 'BEGIN{FS=OFS="|"}{a[$1]=$0;b[$0]=$1} END{for(i in b) if(i!=a[b[i]]) {print a[b[i]] OFS substr(i,4)|"sort"}}'
P1|V1|V2|V1|V3
P2|V1|V4|V2|V6

# 4  
Old 02-08-2011
Code:
awk -F \| '!a[$0]++ {t=$1;sub($1,""); b[t]=b[t]?b[t] $0:$0}END {for (i in b) print i  b[i]}' infile

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