NAME
       tell - Return current access position for an open channel

SYNOPSIS
       tell channelId


DESCRIPTION
       Returns  an integer string giving the current access posi-
       tion in channelId.  This value returned is a  byte  offset
       that  can be passed to seek in order to set the channel to
       a particular position.  Note that this value is  in  terms
       of bytes, not characters like read.  The value returned is
       -1 for channels that do not support seeking.


KEYWORDS
       access position, channel, seeking
