-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 -M
level, 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.