System Utilities

system.run(command[, silent, background, ...])	Runs a shell command and returns the exit code.
system.collect_output(command[, executable])	Collect the output of a shell command.
system.readlines(filename)	Read the lines of a text file.
system.fatal(message[, retcode])	Print an error message and exit (or raise an exception if in interactive mode).
system.vmpeak()	Return the peak memory usage of the process in kilobytes.
system.hostname([short])	Get the system hostname.