Hi all,
Can I get some better approach to modify the below script, so that execution will be faster.
Currently I am iterating array of large number of records to compare the macthing string occur in a file (30000 lines).
and matching record store in a text file called Result_file.txt
# The array @tag contains around 40000 records
# Input_file.dat contains 30000 lines
open(FH1,"+>Result_file.txt") or die "Cannot create file $!\n";
foreach my $fkey(@tag) {
open(FH,"<Input_file.dat") or die "Cannot read $!\n";
while(<FH>) {
if($_ =~ m/$fkey/g) {
print FH1 "$_\n";
}
}
close(FH);
}
close(FH1);
Can anyone please help me to improve the performance of the above mentioned code
Thanks
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