1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
|
#--
# =============================================================================
# Copyright (c) 2004,2005 Jamis Buck (jamis@37signals.com)
# All rights reserved.
#
# This source file is distributed as part of the Net::SSH Secure Shell Client
# library for Ruby. This file (and the library as a whole) may be used only as
# allowed by either the BSD license, or the Ruby license (or, by association
# with the Ruby license, the GPL). See the "doc" subdirectory of the Net::SSH
# distribution for the texts of these licenses.
# -----------------------------------------------------------------------------
# net-ssh website : http://net-ssh.rubyforge.org
# project website: http://rubyforge.org/projects/net-ssh
# =============================================================================
#++
$:.unshift "../lib"
require 'net/ssh'
# This assumes three things:
#
# 1) That you have an SSH server running on your local machine,
# 2) That the USER environment variable is set to your user name, and
# 3) That you have public and private keys conigured so that you can log into
# your machine via SSH without being prompted for a password.
#
# If #2 or #3 are not true, you can add your user-name and password as the
# second and third parameters (respectively) to Net::SSH.start.
Net::SSH.start( 'localhost' ) do |session|
# ===========================================================================
session.process.open( "bc" ) do |bc|
dialog = [ "5+5", "7*12", "sqrt(2.000000)" ]
bc.on_success do |p|
puts "process started successfully. starting interactive session."
puts "requesting result of #{dialog.first}"
p.puts dialog.shift
end
bc.on_failure do |p, status|
puts "process failed to start (#{status})"
end
bc.on_stdout do |p,data|
puts "--> #{data}"
unless dialog.empty?
puts "requesting result of #{dialog.first}"
p.puts dialog.shift
else
p.close_input
end
end
bc.on_stderr do |p,data|
puts "got stuff from stderr: #{data}"
end
bc.on_exit do |p, status|
puts "process finished with exit status: #{status}"
end
end
puts "done!"
# ===========================================================================
puts "now, trying 'bc' with popen3..."
input, output, error = session.process.popen3( "bc" )
input.puts "5+5"
puts "5+5=#{output.read}"
input.puts "10*2"
puts "10*2=#{output.read}"
input.puts "quit"
# ===========================================================================
puts "trying 'cat' with popen3"
session.process.popen3( "cat" ) do |input,output,error|
input.puts "hello"
puts output.read
input.puts "world"
puts output.read
end
puts "done!"
end
|
