§ 4.151 - [sys] Built-InMnemonic aid: center This provides a means to execute a system command. If the command creates output, it will be incorporated into the output stream. If the command encounters a problem, the stderr results will also be incorporated into the output stream. If you wish to suppress the output of the command with regard to the output stream, execute it within a [comment] ) and that will prevent the results from appearing. Other built-ins used here: [comment] ) As shell commands can present a significant security risk, there is a means to disable this capability when instantiating the class. If noshell=True then [sys] ) does nothing:
mod = macro(noshell=True)
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