os/execute

    cfunction

    (os/execute args &opts flags env)
    
    Execute a program on the system and pass it string arguments. Flags is
    a keyword that modifies how the program will execute.
    
      :e - enables passing an environment to the program. Without :e, the
    current environment is inherited.
      :p - allows searching the current PATH for the binary to execute.
    Without this flag, binaries must use absolute paths.
    
    env is a table or struct mapping environment variables to values.
    Returns the exit status of the program.