opendarwin man page for eof

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

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NAME
       eof - Check for end of file condition on channel

SYNOPSIS
       eof channelId
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DESCRIPTION
       Returns 1 if an end of file condition occurred during the most recent input operation on channelId (such as gets), 0 otherwise.

       ChannelId  must	be  an	identifier for an open channel such as a Tcl standard channel (stdin, stdout, or stderr), the return value from an |
       invocation of open or socket, or the result of a channel creation command provided by a Tcl extension.

SEE ALSO
       file(n), open(n), close(n), fblocked(n), Tcl_StandardChannels(3)

KEYWORDS
       channel, end of file

Tcl									7.5								    eof(n)