open FILE, '>log_'.$expt_name.'.txt' or die "Can't open file : $!\n";
print FILE "***********************\n";
my @Ids=`zcat $log_files  | sed -e 's/\\\n/\\n/g' | grep -B5 'name\?'| grep Id`;
foreach (@Ids){
print $_."\n";
#Search and print the first occurence of <score> after $_
}
close FILE;