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NSProcessInfo class provides methods to access process-wide information. An
NSProcessInfo object can return such information as the current process’s arguments, environment variables, host name, and process name.
NSProcessInfo class is available in Objective-C only. In Java, the
NSSystem class provides the same information as
NSProcessInfo as well as information obtained from function calls in Objective-C. The
NSSystem class object can return such additional information as the user’s name, full name, and home directory. The class also provides a method,
log, to send strings to