adding field values if field matches


 
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# 1  
Old 07-07-2010
adding field values if field matches

hi

i have file as below , i want to add duplicate records like bell_bb to one record with valuve as 15 ( addition of both )

any oneline awk script to achive this ?


Code:
header 0
CAMPAIGN_NAME 1
 Bell_BB 14
Bell_MONTHLY 803
SOLO_UNBEATABLE 644
Bell_BB 1
Bell_MONTHLY 25
SOLO_UNBEATABLE 78

# 2  
Old 07-07-2010
can you give an example of what is the input and what is the output you are expecting.
# 3  
Old 07-07-2010
Code:
awk '{a[$1]+=$2}END{for(i in a){print i, a[i]}}' file

# 4  
Old 07-07-2010
Input

Code:
header 0
CAMPAIGN_NAME 1
 Bell_BB 14
Bell_MONTHLY 803
SOLO_UNBEATABLE 644
Bell_BB 1
Bell_MONTHLY 25
SOLO_UNBEATABLE 78

Output repuired

Code:
header 0
CAMPAIGN_NAME 1
 Bell_BB 15
Bell_MONTHLY 828
SOLO_UNBEATABLE 722



---------- Post updated at 08:33 AM ---------- Previous update was at 08:31 AM ----------

Thanks Franklin its working fine as per expectation Smilie
# 5  
Old 07-07-2010
To maintain the order of the records:
Code:
awk '{
  if(!a[$1]){
    b[c++]=$1
  } 
  a[$1]+=$2
}
END{
  for(i=0;i<c;i++) 
    print b[i] FS a[b[i]]
}' file

Use nawk or /usr/xpg4/bin/awk on Solaris.
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