Specifies where the output string is to be written:
Write the string to the corresponding log or group.
Write the string to the corresponding file.
Write the string to stdout.
A string to be inserted into the output.
The output command inserts an output string into a file, log, or the standard output, as a line. If the label is for a single log, the string will appear in that log only. If the label is for a group, then the string will appear in each of the logs pertaining to that group.
(output press "Pressure recorded on %M %j, %Y,"
" starting at %02h:%02n:%02z.%T")
(output stdout "Starting log now ...")