Updated 2017-07-12 02:23:19 by AMG

Truncate the file behind the given channel at the given location (or the current by default). Operation is (probably) not supported by non-file channels.
chan truncate channelId ?length?

Like the ftruncate() call in C's stdio.

Introduced in Tcl 8.5.

AMG: For one possible use of this command, see How do I remove one line from a file?.

AMG: Any plans to add support for [chan truncate] to reflected channels?