Awk: Remove Duplicates

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# 1  
Old 01-23-2014
Awk: Remove Duplicates

I have the following code for removing duplicate records based on fields in inputfile file & moves the duplicate records in duplicates file(1st Awk) & in 2nd awk i fetch the non duplicate entries in inputfile to tmp file and use move to update the original file.

Can both the awk be combined in single call? or is there any efficient way to do the same?

awk -F, 'dupentries[$1,$2,$3,$4,$5,$6,$7,$8]++' inputfile >> Duplicates
awk -F, '!dupentries[$1,$2,$3,$4,$5,$6,$7,$8]++' inputfile > inputfile.tmp
mv inputfile.tmp inputfile

# 2  
Old 01-23-2014
awk -F, 'dupentries[$1,$2,$3,$4,$5,$6,$7,$8]++ {print > "Duplicates"; next};print' inputfile > inputfile.tmp
mv inputfile.tmp inputfile

This User Gave Thanks to Don Cragun For This Post:
# 3  
Old 01-23-2014
Hi Don,
it is giving following error at "print"
awk: dupentries[$1,$2,$3,$4,$5,$6,$7,$8]++ {print > "Duplicates"; next}; print
awk:                                                                     ^ syntax error


# 4  
Old 01-23-2014

Just add {print} in place of print.
It should work then.

R. Singh
This User Gave Thanks to RavinderSingh13 For This Post:
# 5  
Old 01-23-2014
Should be:
awk -F, 'dupentries[$1,$2,$3,$4,$5,$6,$7,$8]++ {print > "Duplicates"; next}{print}' inputfile > inputfile.tmp

These 2 Users Gave Thanks to Franklin52 For This Post:
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