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Full Discussion: Merging multiple lines to columns with awk, while inserting commas for missing lines
Top Forums Shell Programming and Scripting Merging multiple lines to columns with awk, while inserting commas for missing lines Post 302953818 by RalphNY on Tuesday 1st of September 2015 09:00:51 PM
Old 09-01-2015
Great! Thanks so much for your help : ) and sorry for the delayed response.

Could you please answer one more question? If the ID field is not the first field in the file, such as, if there are six fields to the left of it, I would have thought that I could just increment the field identifiers: $1 to $7, $3 to $9, and $4 to $10 to have the script continue to operate on the same fields, shown below.
Code:
awk -F, '
NR!=1 && p1!=$7         {print prev
                         delete TMP
                        }
                        {p1=$9
                         TMP[$9]=$10
                         $10=sprintf("%s,%s,%s,%s", TMP["WE"], TMP["MO"], TMP["CE"], TMP["ES"])
                         sub ($9 FS, "")
                         prev=$0
                        }
END                     {print prev}
' OFS="," TestIDNotFirst.csv

However, if I run that on a version of the file where the ID is the 7th field, such as below, that doesn't work.
Code:
red,up,cold,in,Japanamation,Digeridoo,1111,John Smith,WE,105,Fourty Two Cherry Lane,Nowhere,NY
red,up,cold,in,Japanamation,Digeridoo,1111,John Smith,MO,23,Fourty Two Cherry Lane,Nowhere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,WE,70,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,MO,24,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,CE,30,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,ES,8,Twelve Peach Court,Elsehere,NY
blue,right,hot,in,Smitten,Kitten,3333,Hortense Gable,CE,25,Three Pinapple Ln,Somewhere,NY
blue,right,hot,in,Smitten,Kitten,3333,Hortense Gable,ES,14,Three Pinapple Ln,Somewhere,NY

Results in the output below, where the fields WE, MO, CE, ES aren't being put into the correct columns
Code:
red,up,cold,in,Japanamation,Digeridoo,1111,John Smith,105,,,,Fourty Two Cherry Lane,Nowhere,NY
red,up,cold,in,Japanamation,Digeridoo,1111,John Smith,,23,,,Fourty Two Cherry Lane,Nowhere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,70,,,,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,,24,,,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,,,30,,Twelve Peach Court,Elsehere,NY
green,down,hot,out,Collapso,Polanko,2222,Elane Boozler,,,,8,Twelve Peach Court,Elsehere,NY
blue,right,hot,in,Smitten,Kitten,3333,Hortense Gable,,,25,,Three Pinapple Ln,Somewhere,NY
blue,right,hot,in,Smitten,Kitten,3333,Hortense Gable,,,,14,Three Pinapple Ln,Somewhere,NY

In reality, I need to output specific fields other than the ID and number of hours per category. In pseudo-code, what I want to write is something like:
Code:
awk '{ print $2, $4, $7, $8 }

NR!=1 && p1!=$7         {print prev
                         delete TMP
                        }
                        {p1=$9
                         TMP[$9]=$10
                         $10=sprintf("%s,%s,%s,%s", TMP["WE"], TMP["MO"], TMP["CE"], TMP["ES"])
                         prev=$0
                        }
END                     {print prev}
{ print $10, $12}'
' OFS="," InputFile.csv

And have the code that actually worked like that, output the following:
Code:
up,in,1111,John Smith,105,23,,,Fourty Two Cherry Lane,NY
down,out,2222,Elane Boozler,70,24,30,8,Twelve Peach Court,NY
right,in,3333,Hortense Gable,,,25,14,Three Pinapple Ln,NY

You've already gone above and beyond the call of duty, but if you could turn my pseudocode into real code that outputs this, I'll send a pizza to the address of your choice!
Last edited by RalphNY; 09-01-2015 at 10:06 PM..
 

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