In the Unix world, invoking the command without parameters generally makes it choose a set of well-documented defaults.

Prompting for parameters is also reasonable, but if you do that, please check that STDIN is a tty using the -t test.

In reply to Re^2: A thought about usability in Perl and Linux in general. by DrHyde
in thread A thought about usability in Perl and Linux in general. by Cap'n Steve

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