TECO produces one informational and two warning messages.  These
  messages do not abort the command and execution continues.

1  –  %Search fail in iter

          Indicates that a search command has  failed  inside
          iteration  brackets.   A  ;   (semi-colon)  command
          immediately  following  the  search   command   can
          typically  be used to suppress this message.  After
          printing the message, the iteration is  terminated,
          i.e., TECO simulates a 0; command.

2  –  %Exceeding disk quota

          Indicates that the  current  output  operation  has
          exceeded  your  disk quota.  You may continue to do
          output up to your  quota  overdraft  limit.  It  is
          suggested  that  you exit from the current edit and
          purge old file versions to free up some disk space.

3  –  [nnn pages]

          This informational message tells you  the  size  of
          TECO's  combined text buffer and Q-register storage
          in pages.