#!/usr/bin/env python3

# encoding: utf-8

#

# Copyright (c) 2008 Doug Hellmann All rights reserved.

#

"""

"""

#end_pymotw_header

import cmd

import subprocess

class ShellEnabled(cmd.Cmd):

last_output = ''

def do_shell(self, line):

"Run a shell command"

print("running shell command:", line)

sub_cmd = subprocess.Popen(line,

shell=True,

stdout=subprocess.PIPE)

output = sub_cmd.communicate()[0].decode('utf-8')

print(output)

self.last_output = output

def do_echo(self, line):

"""Print the input, replacing '$out' with

the output of the last shell command.

"""

# Obviously not robust

print(line.replace('$out', self.last_output))

def do_EOF(self, line):

return True

if __name__ == '__main__':

ShellEnabled().cmdloop()