external_command
🔗NAME
external_command
🔗SYNOPSIS
pass a command to the operating system for execution and return the result
🔗USAGE
local dsys = require "lib/dtutils.system"
local result = dsys.external_command(command)
command - string - a string containing the command and arguments to be passed to the operating system for execution.
🔗DESCRIPTION
external_command passes a command to the operating system for execution and returns the results.
🔗RETURN VALUE
result - number = the return value signalling success or failure.