hash

Hi all,

I have a flat file that contains a pid, us_size and euro_size. I want to create read in the file and create one hash for the us_size (%US) and the other for the euro_size (%EURO). Then i want to do a print statement if the pid value in the us_size hash is equal to pid value in the euro_size hash...maybe IF ($US{$pid} = $EURO{$pid}) {print statement...}. 

The part where i'm stuck on is how to assign the data into a hash and do the comparison, could one of you help me with the Perl's syntax or point in the right direction? 

Thanks much!


pid|us_size|euro_size
1|10|34
2|11|35
3|12|37
4|13|