general.add_option('--proxy', dest='proxy', default=None, help='Use the specified HTTP/HTTPS proxy', metavar='URL')
general.add_option('--no-check-certificate', action='store_true', dest='no_check_certificate', default=False, help='Suppress HTTPS certificate validation.')
general.add_option(
- '--cache-dir', dest='cachedir', default=get_cachedir(),
+ '--cache-dir', dest='cachedir', default=get_cachedir(), metavar='DIR',
help='Location in the filesystem where youtube-dl can store downloaded information permanently. By default $XDG_CACHE_HOME/youtube-dl or ~/.cache/youtube-dl .')
general.add_option(
'--no-cache-dir', action='store_const', const=None, dest='cachedir',
video_format.add_option('-f', '--format',
- action='store', dest='format', metavar='FORMAT',
+ action='store', dest='format', metavar='FORMAT', default='best',
help='video format code, specifiy the order of preference using slashes: "-f 22/17/18". "-f mp4" and "-f flv" are also supported')
video_format.add_option('--all-formats',
action='store_const', dest='format', help='download all available video formats', const='all')