SecureCRT 使用python脚本

最新推荐文章于 2025-05-14 15:08:32 发布

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最新推荐文章于 2025-05-14 15:08:32 发布

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分类专栏： python使用文章标签： secureCRT python session

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本文介绍如何使用SecureCRT结合Python进行自动化操作，包括通过对话框交互、读取日志文件、执行远程命令并获取输出等内容。

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转自：http://www.codeweblog.com/securecrt-python/

学完python后需要学以致用，但平时还真没有这个环境，也不搞自动化，但语言这玩意必需要用，就拿secureCRT来练手吧，也算是和工作擦点边

对话框加按扭

CONFIRM_REPLACE = """\                                                                    #为数不多的button判断
Do you want to replace the contents of "%(FILE)s" with the selected text? 

    Yes = overwrite
    No = append
    Cancel = end script"""
message = CONFIRM_REPLACE % { 'FILE' : filename }
        prompt = "Replace contents"
        buttons = BUTTON_YESNOCANCEL

        result = crt.Dialog.MessageBox(message, prompt, buttons)
if result == IDYES:
    fileMode = "w"
elif result == IDNO:
    fileMode = "a"

对话框取值

 crt.Dialog.Prompt(                                                                        #超级有用的在用户这获取数据的方式
        "Save selected text to file:",
        "SecureCRT - Save Selected Text To File",
        "MyFile.txt")

获取log文件名在SecureCRT

tab = crt.GetScriptTab()
tab.Session.LogFileName                                                                     #如果在CRT中设置了log文件名，这个函数可以把它读取出来
可以直接取到log的文件名

获取系统当前的前缀名

SCRIPT_TAB = crt.GetScriptTab()
rowIndex = SCRIPT_TAB.Screen.CurrentRow
colIndex = SCRIPT_TAB.Screen.CurrentColumn - 1
prompt = SCRIPT_TAB.Screen.Get(rowIndex, 0, rowIndex, colIndex)                              #获取当前行，当前列的数据，即该服务器的前缀，与waitfor配套
prompt = prompt.strip()

获取打印值

def CaptureOutputOfCommand(command, prompt):
    if not crt.Session.Connected:
        return "[ERROR: Not Connected.]"

    # First, send the command to the remote.
    SCRIPT_TAB.Screen.Send(command + '\r')                                                 #输入命令 cmmand 然后回车

    # Second, wait for the carriage return to be echoed by the remote device.
    # This allows us to capture only the output of the command, not the line
    # on which the command was issued (which would include the prompt + cmd).
    # If you want to capture the command that was issued, simply comment out
    # the following line of code.
    SCRIPT_TAB.Screen.WaitForString('\r')                                                  #等待命令输完后，服务器给的回应，这样可以不是获取行，而是获取输出

    # Now that the command has been sent, use Screen.ReadString to capture
    # all the data that is received up to the point at which the shell
    # prompt appears (the captured data does not include the shell prompt).
    return SCRIPT_TAB.Screen.ReadString(prompt)                                            #获取直到prompt出现时的所有数据

屏幕取词

filename = os.path.join(os.path.expanduser('~'), 'output.txt')                                 #~/output.txt
fp = open(filename, "wb+")
screenrow = crt.Screen.CurrentRow - 1
readline = crt.Screen.Get(screenrow, 1, screenrow, 20)                                         #把当前行的1~20个字符取出来
fp.write(readline + os.linesep)                                                                #把取出的那一行加行尾符写到文件中

写到excel

import os
import csv                                                                                     #excel module
fileobj = open(filename, 'wb')
worksheet = csv.writer(fileobj)
worksheet.writerow(items[:2])
fileobj.close(

连接

SSH:
cmd = "/SSH2 /L %s /PASSWORD %s /C 3DES /M MD5 %s" % (user, passwd, host)
crt.Session.Connect(cmd)                                                                        #ssh -L user password host
Telnet:
crt.Session.Connect("/TELNET 127.0.0.1 2034")                                                   # telnet 127.0.0.1:2034
crt.Session.Connect("/S \"" + session + "\"")                                                   #如果这个session在CRT里存在，无论是Telnet还是SSH都能连

调试工具 CRT中的print

crt.Dialog.MessageBox("Nothing to save!")

参考：

http://www.vandyke.com/support/securecrt/python_examples.html