ASPL 1> vardir = ggdir(dir,/tmp/aaa1)
create a set variable vardir assigned ggdir() globing directory /tmp/aaa1
ASPL 2> ?10,5 vardir
interrogate vardir iterating 10 times with a delay of 5 seconds in between
ASPL 3> v sorted
print the symbol table showing all archived variables
ASPL 4> @sim vardir
print the similarity beween the archived variable vardir
ASPL 5> ,gU dir dir@1 dir@2 dir@3 dir@4 dir@5
ooops no such variables in the symbol table!
ASPL 6> ,gU vardir vardir@1 vardir@2 vardir@3 vardir@4 vardir@5
labinate and display the union between vardir and all its archives
ASPL 7> ,gU vardir vardir@5
labinate and display the union between last vardir and its initial group
ASPL 8> quit
sweet!