For record only :-) Right after options description.
```
 Use one, and only one of -b, -c or -f.  Each LIST is made up of one range, or many ranges separated by  commas.   Selected
       input is written in the same order that it is read, and is written exactly once.  Each range is one of:

       N      N'th byte, character or field, counted from 1

       N-     from N'th byte, character or field, to end of line

       N-M    from N'th to M'th (included) byte, character or field

       -M     from first to M'th (included) byte, character or field
```