File I/O

Print("Hello World!");
LogTo("log.txt");                       # log to log.txt
PrintLine("Numbers: ", 1, ", ", 2);
PrintTo("file.txt", "a := ", 2);
AppendTo("file.txt", ";\n");
Read("file.txt");                       # read file into stdin
Exec("del file.txt");                   # MS/DOS system call
a;                                      # file contents was executed
LogTo();                                # Turn off logging