Basically i am working on dz: TWO files with some format will be arguments to script Threshold value option such as “-th 5k/M”. This option would mean that 5kb or 5mb of the memory is allowed to be used as threshold. Output from perl script: Diff the files, save it to 3rd file and just print PASS/FAIL depending on the threshold specified. Table used in this format:

MemU MemA MemF StreamName

489 489 0 -

11 11 0 -

5 5 0 -

505 505 0 Totals

where to use next; because its going in infinite loop .. how should i use next statement fr bth d files !

The suggestion was to use next to skip the header line if either you recognize it as a header (for example with a regex), or you know that it is the first line of the file because the $. special variable (line number in the last read file) is equal to 1, something like this:

next if $. == 1;

In my example program, I used a third solution: to read (and discard) one line of input of each file before entering into the while loop. This is slightly faster when reading huge files, since it removes a test from the inner loop, but the difference is probably pretty small.