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Commit824e097

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[symfony#2408] Minor tweaks for OutputInterface verbosity level discussion
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‎components/console/introduction.rst

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@@ -160,7 +160,7 @@ You can also set these colors and options inside the tagname::
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// bold text on a yellow background
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$output->writeln('<bg=yellow;options=bold>foo</bg=yellow;options=bold>');
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Verbositylevels
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VerbosityLevels
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~~~~~~~~~~~~~~~~
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The console has 3 levels of verbosity. These are defined in the
@@ -178,14 +178,21 @@ You can specify the quiet verbosity level with the ``--quiet`` or ``-q``
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option. The ``--verbose`` or ``-v`` option is used when you want an increased
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level of verbosity.
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It is possible to print messages in a command only for the according verbosity
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..tip::
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The full exception stacktrace is printed if the ``VERBOSITY_VERBOSE``
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level is used.
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It is possible to print a message in a command for only a specific verbosity
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level. For example::
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if (OutputInterface::VERBOSITY_VERBOSE === $output->getVerbosity()) {
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$output->writeln(...);
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}
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Note that when the quiet level is used, all output is suppressed.
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When the quiet level is used, all output is suppressed as the default
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:method:`Symfony\Component\Console\Output::write<Symfony\\Component\\Console\\Output::write>`
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method returns without actually printing.
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Using Command Arguments
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-----------------------

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