The basic function of sowhat is very straightforward. One runs it as a normal user. Sowhat parses the user's PATH environment variable to create a list of programs to scan. For each program, it parses the output of the Solaris utility `ldd' to generate an index of the libraries the program will load. It inverts this index so that it can list programs that call each library and stores the inverted index in a database from which it can generate reports. One can easily limit the report to specific libraries of interest by listing them on the command line.