&bull; *`/logger`* `[list | set level | disable]`::

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  logger plugin configuration

     list: show logging status for opened buffers
      set: set logging level on current buffer
    level: level for messages to be logged (0 = logging disabled, 1 = a few messages (most important) .. 9 = all messages)
  disable: disable logging on current buffer (set level to 0)
  
  Options "logger.level.*" and "logger.mask.*" can be used to set level or mask for a buffer, or buffers beginning with name.
  
  Examples:
    set level to 5 for current buffer:
      /logger set 5
    disable logging for current buffer:
      /logger disable
  
    set level to 3 for all IRC buffers:
      /set logger.level.irc 3
    disable logging for main WeeChat buffer:
      /set logger.level.core.weechat 0
    use a directory per IRC server and a file per channel inside:
      /set logger.mask.irc "$server/$channel.weechatlog"
  
  Log levels used by IRC plugin:
    1: user message, notice, private
    2: nick change
    3: server message
    4: join/part/quit
    9: all other messages
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