Dear GNU, I am using the sort command in (GNU coreutils) version 8.13
I noticed the reverse option is not correctly applied if it has to sort by more than one column. This behaviour is corrected by forcing again the type of sort. This happens with -n and -g. Example: echo -e "930 7.83\n930 77.52\n930 54.09" | sort -n -k1 -k2r 930 7.83 930 77.52 930 54.09 echo -e "930 7.83\n930 77.52\n930 54.09" | sort -n -k1 -k2rn 930 77.52 930 54.09 930 7.83 Kind Regards, Adrià and Deimos -------------------------------------------------------- o o o | Adrià Rovira Garcia o o o | Research group of Astronomy and GEomatics (gAGE) o o o | Universitat Politècnica de Catalunya (UPC) -------------------------------------------------------- gAGE / UPC Departament de Matemàtiques C/. Jordi Girona 1-3 Campus Nord UPC Building C3, Office 211 08034 Barcelona, Spain Tel:+34 93 401 25 31 Fax:+34 93 401 59 81 http://www.gage.upc.edu