hi to all monks....and also to lesser mortals

i am using the below 'if' statement to process a text. 

while (<>)
{
if (/ (\w\w) (\w\w) (\w\w) (\w\w) /)
{
 #do smthing
}

00 12 0d 90

[download]

the above text is part of a larger log file which i havent shown here. i am not wrong the 'which(<>)' command does line by line processing. so i intend to assign each pair of digits a variable like $1,$2 etc ...which i can later manipulate in my code. another such line might contain 3 pairs instead of 4 and yet another might contain 2 pairs.but i am only able to use the line having 4 pairs like the one shown above and none of the other lines having pairs less than 4.

what can i do to be able to include the line with less than 4 pairs also.

awaiting ur replies
thanks
vineet

In reply to pattern matching by vineet2004

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