|(require mzlib/os)||package: compatibility-lib|
Returns a string for the current machine’s hostname (including its domain).
Returns an integer identifying the current process within the operating system.
file : path-string? n-bytes : exact-nonnegative-integer? = 0
Truncates or extends the given file so that it is n-bytes long. If the file does not exist, or if the process does not have sufficient privilege to truncate the file, the exn:fail exception is raised.