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pos $

Returns the location in scalar where the last m//g search over scalar left off. It returns the offset of the character after the last one matched. This is the offset where the next m//g search on that string will start. Remember that the offset of the beginning of the string is 0 . For example:

$grafitto = "fee fie foe foo";
while ($grafitto =~ m/e/g) {
    print pos $grafitto, "\n";
prints 2 , 3 , 7 , and 11 , the offsets of each of the characters following an e". The pos function may be assigned a value to tell the next m//g where to start.