Debugging Levels
----------------

`debug STRING ...'
     Set the debugging level.  This command is only effective if the
     code has been compiled to include debugging.  The default is to
     have no debugging.  The arguments are strings which name the types
     of debugging to be turned on.  The following types of debugging
     are defined:

    `abnormal'
          Output debugging messages for abnormal situations, such as
          recoverable errors.

    `chat'
          Output debugging messages for chat scripts.

    `handshake'
          Output debugging messages for the initial handshake.

    `uucp-proto'
          Output debugging messages for the UUCP session protocol.

    `proto'
          Output debugging messages for the individual link protocols.

    `port'
          Output debugging messages for actions on the communication
          port.

    `config'
          Output debugging messages while reading the configuration
          files.

    `spooldir'
          Output debugging messages for actions in the spool directory.

    `execute'
          Output debugging messages whenever another program is
          executed.

    `incoming'
          List all incoming data in the debugging file.

    `outgoing'
          List all outgoing data in the debugging file.

    `all'
          All of the above.

     The debugging level may also be specified as a number.  A 1 will
     set `chat' debugging, a 2 will set both `chat' and `handshake'
     debugging, and so on down the possibilities.  Currently an 11 will
     turn on all possible debugging, since there are 11 types of
     debugging messages listed above; more debugging types may be added
     in the future.  The `debug' command may be used several times in
     the configuration file; every debugging type named will be turned
     on.  When running any of the programs, the `-x' switch (actually,
     for `uulog' it's the `-X' switch) may be used to turn on
     debugging.  The argument to the `-x' switch is one of the strings
     listed above, or a number as described above, or a comma separated
     list of strings (e.g.,  `-x chat,handshake').  The `-x' switch may
     also appear several times on the command line, in which case all
     named debugging types will be turned on.  The `-x' debugging is in
     addition to any debugging specified by the `debug' command; there
     is no way to cancel debugging information.  The debugging level
     may also be set specifically for calls to or from a specific
     system with the `debug' command in the system file (
see Miscellaneous (sys).).

     The debugging messages are somewhat idiosyncratic; it may be
     necessary to refer to the source code for additional information
     in some cases.