This dataset depends on the following independent variable (i.e, grid):
grid: /T (days since 1960-01-01) ordered [ (1-10 Jan 1960) (11-20 Jan 1960) (21-31 Jan 1960) (1-10 Feb 1960) (11-20 Feb 1960) (21-29 Feb 1960) (1-10 Mar 1960) (11-20 Mar 1960) (21-31 Mar 1960) (1-10 Apr 1960) (11-20 Apr 1960) (21-30 Apr 1960) (1-10 May 1960) (11-20 May 1960) (21-31 May 1960) (1-10 Jun 1960) (11-20 Jun 1960) (21-30 Jun 1960) (1-10 Jul 1960) (11-20 Jul 1960) (21-31 Jul 1960) (1-10 Aug 1960) (11-20 Aug 1960) (21-31 Aug 1960) (1-10 Sep 1960) (11-20 Sep 1960) (21-30 Sep 1960) (1-10 Oct 1960) (11-20 Oct 1960) (21-31 Oct 1960) (1-10 Nov 1960) (11-20 Nov 1960) (21-30 Nov 1960) (1-10 Dec 1960) (11-20 Dec 1960) (21-31 Dec 1960)] :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_merged_vs_meanrfe/yearly-climatology/T/%28days%20since%201960-01-01%29streamgridunitconvert/downloadsarcinfo.html'
single quotes are necessary in unix to protect the url from expansion; probably necessary in other cases as well