Shell Programming and Scripting

       -t number
       --tries=number
           Set number of retries to number.  Specify 0 or inf for infinite
           retrying.  The default is to retry 20 times, with the exception of
           fatal errors like "connection refused" or "not found" (404), which
           are not retried.

       -T seconds
       --timeout=seconds
           Set the network timeout to seconds seconds.  This is equivalent to
           specifying --dns-timeout, --connect-timeout, and --read-timeout,
           all at the same time.

           When interacting with the network, Wget can check for timeout and
           abort the operation if it takes too long.  This prevents anomalies
           like hanging reads and infinite connects.  The only timeout enabled
           by default is a 900-second read timeout.  Setting a timeout to 0
           disables it altogether.  Unless you know what you are doing, it is
           best not to change the default timeout settings.

           All timeout-related options accept decimal values, as well as sub-
           second values.  For example, 0.1 seconds is a legal (though unwise)
           choice of timeout.  Subsecond timeouts are useful for checking
           server response times or for testing network latency.