CATCH - catch any preceding $*$GOTO.

$*$CAtch

is a specially-named label that matches anything. For example, in

$*$goto x
$*$rewind on
$*$catch

the $*$GOto will jump to the $*$CAtch rather than "x", since $*$CAtch comes first. $*$CAtch will not stop any $*$GOto that comes later in the file. For example, with

$*$catch
$*$rewind on
$*$goto x

the $*$GOto never jumps to the $*$CAtch, even if the $*$CAtch is the first label that EXEC finds in the command file, because $*$CAtch never works for a $*$GOto that comes later in the file.