linux - Merging Multiple records into a Unique records with all the non-null values -


suppose have 3 records :

p1||1234| p1|56001|| p1|||nj

i want merge these 3 records 1 attributes. final record :

p1|56001|1234|nj

is there way achieve in unix/linux?

in example, 1st row have 1234, 2nd row have 56001.

i don't why in final result, 56001 goes before 1234. assume typo/mistake.

an awk-oneliner job:

awk -f'|' '{for(i=2;i<=nf;i++)if($i)a[$1]=(a[$1]?a[$1]"|":"")$i}end{print $1"|"a[$1]}'

with data:

kent$  echo "p1||1234| p1|56001|| p1||nj"|awk -f'|' '{for(i=2;i<=nf;i++)if($i)a[$1]=(a[$1]?a[$1]"|":"")$i}end{print $1"|"a[$1]}' p1|1234|56001|nj

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