it's not changing the default umask like I expected

What is the result you expect?

If you were doing it manually instead of using perl, what would you do? Have you done it successfully? Or is part of the problem that you don't know how to achieve your objective?

If you answer these questions you may get better guidance.

In reply to Re: invoking umask command in perl by ig
in thread invoking umask command in perl by austin43

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