搬瓦工中文网
一、Polysh简介
Polysh 是一个交互式命令，可以在一台服务器上批量的对一批服务器进行处理，运行交互式命令。Polysh可以同时登录多个远程主机，而不需要通过relay一台一台的登录，并执行相同的指令，方便了问题的排查和定位，大大减少了我们的工作量。
?
| 1 | Polysh is a tool to aggregate several remote shells into one. It is used to launch an interactive remote shell on many machines at once. It is written in Python and requires Python ≥ 2.4. |
注： 官方解释：Polysh 是一个由几个远程脚本集合而成的工具，它被用于在许多服务器上运行一个交互式的远程脚本，由 Python 编写，最低要求为 Python 2.4 。
二、polysh安装
通过relay登录staging机器，执行如下命令安装polysh。安装目录为用户目录： /opt/hl/。
1.已安装python的安装
?
| 1 2 3 4 | wget wget http: //guichaz . free .fr /polysh/files/polysh-0 .4. tar .gz tar -zxvf polysh-0.4. tar .gz vim prod-polysh.sh |
脚本内容如下：
?
| 1 2 | #10.252.176.33,10.252.176.35是你要链接的机器ip python /opt/hl/polysh-0 .4 /polysh .py {10.252.176.33,10.252.176.35} |
开放给其他用户可执行的权限
?
| 1 | chmod 777 prod-polysh.sh |
2.未安装python的安装
?
| 1 2 3 4 5 6 7 | wget wget http: //guichaz . free .fr /polysh/files/polysh-0 .4. tar .gz tar -zxvf polysh-0.4. tar .gz cd polysh-0.4 su python setup.py install vim prod-polysh.sh |
脚本内容如下：
?
| 1 2 | #10.252.176.33,10.252.176.35是你要链接的机器ip python /opt/hl/polysh-0 .4 /polysh .py {10.252.176.33,10.252.176.35} |
开放给其他用户可执行的权限
?
| 1 | chmod 777 prod-polysh.sh |
三、Xshell配置Xagent（mac可跳过这一步）
打开文件-属性，选择SSH选项，选择”使用密码处理的Xagent(SSH代理)”。然后将Xshell重启。
四、polysh使用
4.1.使用方法一
?
| 1 | polysh 10.252.176.33 10.252.176.35 |
4.2.使用方法二
?
| 1 | . /prod-polysh .sh |
则会出现如下提示信息
?
| 1 2 | [---hl-----]$ . /prod-polysh .sh ready (8) |
ready (8) 表示 8台机器已经连接完毕，可以执行查询命令。exit或Crtl+z都可以退出。
4.3.执行命令
?
| 1 2 | ready (8)> cd /opt/hl ready (8)> pwd |
显示如下：
?
| 1 2 | 10.252.176.33: /opt/hl 10.252.176.35 : /opt/hl |
五、源码
可以通过git获取polysh的源码
?
| 1 | git clone git: //repo .or.cz /polysh .git |
六、其他
以冒号开头的指令不会发送到远程主机，polysh会执行以冒号开头的指令，例如:
?
| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | ready (2)> :help :add Add one or many remote shells. :chdir Change the current directory of polysh (not the remote shells). :disable Disable sending commands to remote shells. :enable Enable sending commands to remote shells. :export_vars Export some environment variables on enabled remote shells. :help List control commands or show their documentations. :hide_password Do not echo the next typed line. :list List remote shells and their states. :purge Delete disabled remote shells. :quit Quit polysh. :reconnect Try to reconnect to disconnected remote shells. :rename Rename all enabled remote shells with the argument. :replicate Copy a path from one remote shell to all others :reset_prompt Change the prompt to be recognized by polysh. :send_ctrl Send a control character to remote shells. :set_debug Enable or disable debugging output for remote shells. :set_log Duplicate every console I/O into the given local file. :show_read_buffer Print the data read by remote shells. :upload Upload the specified local path to enabled remote shells. |
