[Classiccity-pm] Greatest number
Linda Dubes Law
lindadl at uga.edu
Mon Jun 5 11:02:16 PDT 2006
I am trying to figure out an efficient way to get the greatest number in a file. The file is rather large. Should I do something like:
*********************
while (<DPCARDS>) {
chomp;
($cardnumber) = (split / /) [1];
if ($cardnumber gt $largest) {
$largest = $cardnumber
*********************
Or should I read everything in an array and then sort the array
Or should I go to the system, sort the file and then is there some way to read in only the last record of a file? Or perhaps sort descending and then read in only the first record?
As always, your input is appreciated!
Thanks,
Linda Law
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