RosettaCodeData/Task/Execute-a-system-command/REBOL/execute-a-system-command.rebol

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; Capture output to string variable:
x: "" call/output "dir" x
print x
; The 'console' refinement displays the command output on the REBOL command line.
call/console "dir *.r"
call/console "ls *.r"
call/console "pause"
; The 'shell' refinement may be necessary to launch some programs.
call/shell "notepad.exe"