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Usage: /usr/sbin/qshape [ -s ] [ -p ] [ -m <min_subdomains> ] [ -l ] [ -b <bucket_count> ] [ -t <bucket_time> ] [ -w <terminal_width> ] [ -N <batch_msg_count> ] [ -n <batch_top_domains> ] [ -c <config_directory> ] [ <queue_name> ... ] The 's' option shows sender domain counts. The 'p' option shows address counts by for parent domains. Parent domains are shown with a leading '.' before the domain name. Parent domains are only shown if the the domain is not a TLD, and at least <min_subdomains> (default 5) subdomains are shown in the output. The bucket age ranges in units of <bucket_time> minutes are [0,1), [1,2), [2,4), [4,8), [8, 16), ... i.e.: the first bucket is [0, bucket_time) minutes the second bucket is [bucket_time, 2*bucket_time) minutes the third bucket is [2*bucket_time, 4*bucket_time) minutes... '-l' makes the ages linear, the number of buckets shown is <bucket_count> The default summary is for the incoming and active queues. An explicit list of queue names can be given on the command line. Non-absolute queue names are interpreted relative to the Postfix queue directory. Use <config_directory> to specify a non-default Postfix instance. Values of the main.cf queue_directory parameter that use variable expansions are not supported. If necessary, use explicit absolute paths for all queues.