SYNOPSIS
$0 [--src src-range(default `hostname`)] --dst dst-range --sp src-path [--dp dst-path] \
[--timeout seconds(default 300)]
[--max number(default 128)]
[--retry number(default 2)]
[--gave number(default 3)]
[--user username(default `id -un`)]
[--sudo user1 ]
[--chown root]
[--chmod 777]
[--cc]
-1 Forces grsync to try protocol version 1
-2 Forces grsync to try protocol version 2
-3 Forces grsync to try protocol version 3