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4.2.26 ‘-M’: Set output message level

By default, Fweb is relatively verbose; as it proceeds, it prints messages about what files it is reading and writing, numbers of the starred sections, line numbers, etc. However, different levels of verbosity can be set by the command ‘-Mlevel’, where the level may be 0 (least verbose) through 4 (most verbose; the default), as described in the following table:

0
Like level 1, but the start-up banner is not printed. If Fweb runs to completion with no errors, nothing at all will be printed.
1
Print only error messages.
2
Print error and warning messages.
3
Print errors, warnings, and short information messages (excluding starred section numbers and line numbers).
4
Print everything.

The start-up banner, which includes the version number, is printed for all message levels except 0. For level 0, one can use the ‘-V’ option to request the start-up banner. See -V_.

This option is very recent, and may not be fully debugged for obscure combinations of command-line options. Please report any annoyances.

Another way of discriminating message types is via color output. See Color.