System commands


APLX supports a range of commands ('system commands') which are used to communicate directly with the system. They are not part of the APL language itself. APL system commands start with a right parenthesis:

             )SAVE

The display generated by a system command cannot directly be used as the argument to a function. However, in APLX, system commands can be executed using the – (execute) primitive:

             ’LIB
      [1] © Show contents of library 0
      [2] –')LIB'
      [3] ’

The output from executed system commands can be captured in a variable or passed as an argument to a function:

            X„–')SYMBOLS'
            X
      IS 1026, USED 21

See the reference section on System Commands for a full list of available commands.


Topic: APLX Help : Help on APL language : APL Fundamentals : System commands
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