separated by a dash) separated by commas. Bytes, characters, and
fields are numbered starting at 1. Incomplete ranges may be
given: @option{-@var{m}} means @samp{1-@var{m}}; @samp{@var{n}-} means
-@samp{@var{n}} through end of line or last field.
+@samp{@var{n}} through end of line or last field. The list elements
+can be repeated, can overlap, and can be specified in any order; but
+the selected input is written in the same order that it is read, and
+is written exactly once.
The program accepts the following options. Also see @ref{Common
options}.