tell - Return current access position for an open channel
tell channelId
Returns a decimal string giving the current access position in
channelId.
The value returned is -1 for channels that do not support
seeking.
access position, channel, seeking
Copyright © 1993 The Regents of the University of California.
Copyright © 1994-1996 Sun Microsystems, Inc.
Copyright © 1995, 1996 Roger E. Critchlow Jr.