Hi,

I have about 3 000 000 of text lines.
Each line contains one or more numbers separated by TAB.
I want to get only the unique numbers from each line.
Something like:
12123_TAB_456_TAB_455667
'Till noweverything was fine with a code like:
LOOP STARTS HERE

my %unique =();
grep {$unique{$_} = undef} split(/\t/, $myLine); 
$myLine = join("\t", keys %unique);

LOOP ENDS HERE

[download]
Now it seems to be to slow, the lines length have increased.
There are lines of ~4kB .
Is there any other (fast) way to do it?

Best Regards,
Marcel

In reply to searching for unique numbers into a string by marcelpreda

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