Source: cli/master/list_datasets.pro
list_datasets Generate a list of the datasets present in the environment. Usage: list_datasets Keywords: names string output A named variable to contain the names of the datasets types string output A named variable to contain the types of the datasets count int ouput A named variable to contain the number of datasets present quiet If set, then don't print the list, just return the values. History: Original: 20/7/00; SJT