Code:
#!/bin/sh
var='today--RSS_URL=http://someurl'
x1=`echo $var | sed "s_\(.*\)--\(.*\)=\(.*\)_\1_"`
x2=`echo $var | sed "s_\(.*\)--\(.*\)=\(.*\)_\2_"`
x3=`echo $var | sed "s_\(.*\)--\(.*\)=\(.*\)_\3_"`
echo "Testing results: var($var) x1($x1) x2($x2) x3($x3)"
