How to break the foreach() loop? There is a instruction to do it?
last

See also Loop Control

The second question is how to tell to print to a specific position? For example, I always want to write starting at position 30.

Update: due to subsequent clarification of the question, this does not solve the problem:

If you only want to print a portion of a string, use substr: 

print substr($s, 29);

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In reply to Re: Break foreach and print at specific position? by toolic
in thread Break foreach and print at specific position? by perlmonks12

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