tcopy: Converts between table formats
tcopy is a table copying tool.
It simply copies a table from one place to another, but since
you can specify the input and output formats as desired, it works
as a converter from any of the supported 
input formats 
to any of the supported 
output formats.
tcopy is just a stripped-down version of
tpipe - it doesn't do anything
that tpipe can't, but the usage is slightly 
simplified.
It is provided as a drop-in replacement for the old
tablecopy (uk.ac.starlink.table.TableCopy)
tool which was supplied with earlier versions of STIL and TOPCAT - 
it has the same arguments and behaviour as tablecopy, 
but is implemented somewhat differently
and will in some cases be more efficient.