openbsd-ports/devel/p5-Term-ProgressBar/pkg/DESCR

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Term::ProgressBar provides a simple progress bar on the terminal, to let
the user know that something is happening, roughly how much stuff has
been done, and maybe an estimate at how long remains.
A typical use sets up the progress bar with a number of items to do, and
then calls update to update the bar whenever an item is processed.