However it should only be used if client's files are never modified locally in any way.
Without this option, a transient failure such as a dropped network connection causes csup to retry repeatedly, using randomized exponential backoff to space the retries. The local address might be a hostname or a numeric host address string consisting of a dotted decimal IPv4 address or an IPv6 address.
This may be useful on hosts which have multiple IP addresses.
Slash characters are matched only by explicit slashes in the pattern.
Leading periods in file name are not treated specially.
By default, csup will retry indefinitely until an update is successfully completed.
The retries are spaced using randomized exponential backoff. -s Suppresses the check of each client file's status against what is recorded in the list file. This option greatly reduces the amount of disk activity and results in faster updates with less load on the client host.-k Causes csup to keep the temporary copies of any incorrectly edited files, in the event of checksum mismatches.This option is for debugging, to help determine why the files were edited incorrectly.A level of 1 (the default) causes each updated file to be listed.A level of 2 provides more detailed information about the updates performed on each file. -p port Sets the TCP port to which csup attempts to connect on the server host. -r max Retries Limits the number of automatic retries that will be attempted when transient errors such as lost network connections are encountered.csup takes advantage of the proper- ties of CVS repositories and the files they contain (in particular, RCS files), enabling it to perform updates much faster than traditional systems.