Question

我有两个ruby代码，一个是ssh.rb，另一个是generate_ip.rb，它们都在同一目录中。当我在generate_ip.rb中导入ssh.rb时，总是出现以下错误：

Traceback (most recent call last):
    5: from generate_ip.rb:1:in `<main>'
    4: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    3: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    2: from /root/ssh.rb:8:in `<top (required)>'
    1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- net/ssh/config (LoadError)

generate_ip.rb↓

require './ssh.rb'

这是我的目录结构↓

root@BabyZe:~# ls -l
total 56
drwxr-xr-x 3 root root  4096 Apr  1 20:32 Desktop
drwxr-xr-x 2 root root  4096 Sep 27  2018 Documents
drwxr-xr-x 2 root root  4096 Sep 27  2018 Downloads
-rw-r--r-- 1 root root    32 May  3 07:36 generate_ip.rb
drwxr-xr-x 2 root root  4096 Sep 27  2018 Music
drwxr-xr-x 3 root root  4096 May  3 06:04 Notebooks
drwxr-xr-x 2 root root  4096 Sep 27  2018 Pictures
drwxr-xr-x 2 root root  4096 Sep 27  2018 Public
-rw-r--r-- 1 root root 15595 May  3 06:45 ssh.rb
drwxr-xr-x 2 root root  4096 Sep 27  2018 Templates
drwxr-xr-x 2 root root  4096 Sep 27  2018 Videos

它是完整的代码：

root@BabyZe:~# ls -l
total 56
drwxr-xr-x 3 root root  4096 Apr  1 20:32 Desktop
drwxr-xr-x 2 root root  4096 Sep 27  2018 Documents
drwxr-xr-x 2 root root  4096 Sep 27  2018 Downloads
-rw-r--r-- 1 root root    19 May  3 07:48 generate_ip.rb
drwxr-xr-x 2 root root  4096 Sep 27  2018 Music
drwxr-xr-x 3 root root  4096 May  3 06:04 Notebooks
drwxr-xr-x 2 root root  4096 Sep 27  2018 Pictures
drwxr-xr-x 2 root root  4096 Sep 27  2018 Public
-rw-r--r-- 1 root root 15595 May  3 06:45 ssh.rb
drwxr-xr-x 2 root root  4096 Sep 27  2018 Templates
drwxr-xr-x 2 root root  4096 Sep 27  2018 Videos
root@BabyZe:~# cat generate_ip.rb 
require './ssh.rb'
root@BabyZe:~# ruby generate_ip.rb 
Traceback (most recent call last):
    5: from generate_ip.rb:1:in `<main>'
    4: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    3: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
    2: from /root/ssh.rb:8:in `<top (required)>'
    1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- net/ssh/config (LoadError)

我尝试require_relative，它不起作用-，-

root@BabyZe:~# cat generate_ip.rb 
require_relative 'ssh.rb'
root@BabyZe:~# ruby generate_ip.rb 
Traceback (most recent call last):
    4: from generate_ip.rb:1:in `<main>'
    3: from generate_ip.rb:1:in `require_relative'
    2: from /root/ssh.rb:8:in `<top (required)>'
    1: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
/usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require': cannot load such file -- net/ssh/config (LoadError)

ssh.rb（与Net：SSH相同）↓

# Make sure HOME is set, regardless of OS, so that File.expand_path works
# as expected with tilde characters.
ENV['HOME'] ||= ENV['HOMEPATH'] ? "#{ENV['HOMEDRIVE']}#{ENV['HOMEPATH']}" : Dir.pwd

require 'logger'
require 'etc'

require 'net/ssh/config'
require 'net/ssh/errors'
require 'net/ssh/loggable'
require 'net/ssh/transport/session'
require 'net/ssh/authentication/session'
require 'net/ssh/connection/session'
require 'net/ssh/prompt'

module Net

  # Net::SSH is a library for interacting, programmatically, with remote
  # processes via the SSH2 protocol. Sessions are always initiated via
  # Net::SSH.start. From there, a program interacts with the new SSH session
  # via the convenience methods on Net::SSH::Connection::Session, by opening
  # and interacting with new channels (Net::SSH::Connection:Session#open_channel
  # and Net::SSH::Connection::Channel), or by forwarding local and/or
  # remote ports through the connection (Net::SSH::Service::Forward).

...
...
...

无论如何，我非常感谢所有能给我建议的人。

Answer 1

您的问题不是require_relative 'ssh.rb'中的generate_ip.rb。

您的问题在ssh.rb的第8行

2: from /root/ssh.rb:8:in '<top (required)>'

OP编辑了问题之后：

据我了解，您使用过net-ssh宝石。

您需要install

gem install net-ssh

Answer 2

请尝试以下操作：

require './ssh.rb'

与加载不同，require的加载路径中没有当前目录，因此请使用 require_relative 或使用圆点指定当前目录

有什么方法可以从本地导入ruby模块吗？

2 个答案: