FILE command
The FILE command is used primarily for WMO format messages. The command will
append the message to the end of the named file. The file name is constructed
from the WMO time and the current system time. The time fields are defined the
same as the "strftime" C library function. The options that begin with a % are for the
system time, options beginning with a $ are for the WMO time. The FILE command is
currently built into the queue handler.
It is not a separate program. This is the only
command that is built in.