This dataset depends on the following independent variable (i.e, grid):
grid: /T (months since 1960-01-01) periodic [ (0000 26 Dec - 0000 6 Jan) (0000 6 Jan - 0000 16 Jan) (0000 16 Jan - 0000 26 Jan) (0000 6 Feb - 0000 16 Feb) (0000 16 Feb - 0000 26 Feb) (0000 26 Feb - 0000 6 Mar) (0000 6 Mar - 0000 16 Mar) (0000 16 Mar - 0000 26 Mar) (0000 26 Mar - 0000 6 Apr) (0000 26 Mar - 0000 6 Apr) (0000 6 Apr - 0000 16 Apr) (0000 16 Apr - 0000 26 Apr) (0000 6 May - 0000 16 May) (0000 16 May - 0000 26 May) (0000 26 May - 0000 6 Jun) (0000 6 Jun - 0000 16 Jun) (0000 16 Jun - 0000 26 Jun) (0000 26 Jun - 0000 6 Jul) (0000 26 Jun - 0000 6 Jul) (0000 6 Jul - 0000 16 Jul) (0000 16 Jul - 0000 26 Jul) (0000 6 Aug - 0000 16 Aug) (0000 16 Aug - 0000 26 Aug) (0000 26 Aug - 0000 6 Sep) (0000 26 Aug - 0000 6 Sep) (0000 6 Sep - 0000 16 Sep) (0000 26 Sep - 0000 6 Oct) (0000 26 Sep - 0000 6 Oct) (0000 6 Oct - 0000 16 Oct) (0000 16 Oct - 0000 26 Oct) (0000 6 Nov - 0000 16 Nov) (0000 6 Nov - 0000 16 Nov) (0000 16 Nov - 0000 26 Nov) (0000 6 Dec - 0000 16 Dec) (0000 16 Dec - 0000 26 Dec) (0000 26 Dec - 0000 6 Jan)] :grid
so there will be 36 links below for the different files.
You may want to get a utility like wget which can download sets of files. For example (all one line)
wget -r -l2 -nd --no-parent -e robots=off -v --relative 'http://41.72.104.142/SOURCES/.ZMD/.ENACTS/.rainfall/.ALL/.dekadly/.rfe_mergeddiff_percent/yearly-climatology/%5BX%5Dpartial/T+partial/downloadsarcinfo.html'
single quotes are necessary in unix to protect the url from expansion; probably necessary in other cases as well