tell(n)               Tcl Built-In Commands               tell(n)

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NAME
       tell - Return current access position for an open channel

SYNOPSIS
       tell channelId
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DESCRIPTION
       Returns  a  decimal string giving the current access posi-
       tion in channelId.  The value returned is -1 for  channels
       that do not support seeking.

KEYWORDS
       access position, channel, seeking

Tcl                            7.5                              1