..caution::

The progress bar only works if your platform supports ANSI codes; on other

platforms, no output is generated.

Prior to version 2.6, the progress bar only works if your platform

supports ANSI codes; on other platforms, no output is generated.

..versionadded::2.6

If your platform doesn't support ANSI codes, updates to the progress

bar are added as new lines. To prevent the output from being flooded,

adjust the

:method:`Symfony\\Component\\Console\\Helper\\ProgressBar::setRedrawFrequency`

accordingly. By default, when using a ``max``, the redraw frequency

is set to *10%* of your ``max``.

If you don't know the number of steps in advance, just omit the steps argument

when creating the:class:`Symfony\\Component\\Console\\Helper\\ProgressBar`