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Use GNU Awk? "sort ... | uniq -d | wc -l | read dup_ct"

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Hi,

No idea. Can't help much more.

But I would try to process the file in two executions, the first half and the second half. Or try with other language, like 'Perl'.

Regards,
Birei.

You don't need to use awk to get a result from wc -l, that's severe overkill.

LINES=$(wc -l < inputfile)

You're also comparing as strings, not integers. Try mathematical comparison:

if [...

a simple solution, base on previous script.

awk '{split($4,a,"_"); if (b[$1]<=a[4]a[5]) {b[$1]=a[4]a[5];c[$1]=$0}}
END{for (i in b) print c[i]}' infile |sort > desired_records

sort infile >...

This is not the same code you posted in your other thread.

Yet, pertains to the same problem:


awk '{print $0 > "newfile.txt"}' $infile

awk '{split($4,a,"_"); if (b[$1]<=a[4]a[5]) {b[$1]=a[4]a[5];c[$1]=$0}}
END{for (i in b) print c[i]}' infile

./rem_dups.sh 1 /home/usr/script dups_file.txt

Assuming you have a modern awk (nawk on Sun) this should work. I've added some 'fluff' to illustrate how to capture the command line parameters and use them in your script (don't mean to imply that...