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}


sub show_usage {
    print qq`Usage: $0 [options] [http://]hostname[:port]/path
Options are:
    -n requests     Number of requests to perform
    -c concurrency  Number of multiple requests to make
    -t timelimit    Seconds to max. wait for responses (may be fractional)
    -p postfile     File containg data to POST
    -T content-type Content-type header for POSTing
    -i              Use HEAD instead of GET
    -C attribute    Add cookie, eg. 'Apache=1234'
    -H attribute    Add Arbitrary header line, eg. 'Accept-Encoding: zop'
                    Inserted after all normal header lines.
                    (separate multiple headers with "\\r\\n")
    -V              Print version number and exit
    -k              Use HTTP KeepAlive feature
    -h              Display usage information (this message)
`;
}