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./ex-application [-b] [-h] [--log-file=file] [--log-level=string] [--string=any_string] more_string...
-b Sample boolean argument.
-h, --help Print this help screen.
--log-file The file to use to store log informations.
--log-level Level of log informations:
error: error messages,
warning: warning and error messages,
verbose: all messages.
--string Print a string.
Testing error_level:
Testing warning_level:
Testing verbose_level:
'-b' argument is missing.
'--string' argument value is ''
./ex-application [-b] [-h] [--log-file=file] [--log-level=string] [--string=any_string] more_string...
-b Sample boolean argument.
-h, --help Print this help screen.
--log-file The file to use to store log informations.
--log-level Level of log informations:
error: error messages,
warning: warning and error messages,
verbose: all messages.
--string Print a string.
Testing error_level:
Testing warning_level:
Testing verbose_level:
'-b' argument is missing.
'--string' argument value is ''
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