Re: Capture Contents AND Overwrite without Opening Twice?

A combination of open my $fh, '+<', ..., read, truncate $fh, 0; and seek $fh, 0, 0; (and then write) should do what you ask.

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Re^2: Capture Contents AND Overwrite without Opening Twice? by Anonymous Monk on Oct 08, 2014 at 19:28 UTC
Make sure to read the docs: Check the return values of the functions (`... or die "truncate failed";` etc.), and note that truncate has some kinks in Windows.	[reply] [d/l]