$ x="Hello my name is"
$ set $x
$ echo $1
hello
$ echo $2
my
In other words, using the set command on the string contained in a variable splits the string, using whitespace as the delimiter, into the variables $1, $2, and so on, which could be very handy in scripting. There doesn't appear to be any way to set the delimiter to a different character. Additionally, if the string contains more than nine values or words, you must reference those using ${10}, ${11}, and so on.
10/14/2003