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SecureCRT中Script脚本使用心得

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Release: 2016-06-13 08:40:50
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SecureCRT中Script脚本使用心得

在SecureCRT中使用VBSCRIPT脚本,确实能够提高我们的工作效率,并且可以实现完全的自动化。

SecureCRT给我们提供了很好的平台——脚本工具制作和运行。下面就SecureCRT工具常用到的几个函数阐述如下:

1. 在SecureCRT里,用得最多的应该就是crt.Screen,基本上很多操作都是基于屏幕的返回字来决定下一步该作何操作:

(1):crt.Screen.WaitForString("KeyString",timewaiting)

该函数是单字符串判断,KeyString是需要查找的关键字,timewaiting是一个超时阀值,例如:crt.Screen.WaitForString("people:",5)该行代码的意思就是在5秒内没有检测到people:出现,就执行下一条语句,如果改成:crt.Screen.WaitForString("people:")那就是指直到people:出现才执行下一行代码。

WaitForString是有返回值的,返回值是True 或者 False。因此,可以根据返回值进行条件判断以确定一下条代码。例如:

If (crt.Screen.WaitForString ("current state : UP",1)False) Then
portStatus="PortUP"
Else
portStatus="PortDown"
End If

msgbox portStatus

这段代码用于判断端口状态情况并记录下来.

(2):crt.Screen.WaitForStrings("KeyString1","KeyString2",...,timeout)

用于多个字符串的判断,timeout的作用是一样的。例如:

crt.Screen.WaitForStrings("cisco","huawei","H3C",5)

意思就是在5秒内有检测到相应的字符时,返回相应的索引号(索引号是从1开始的)。如果都没有检查到,则返回0.因此,该函数的使用可以如下:

Dim SwitchKey

SwitchKey=crt.Screen.WaitForStrings("cisco","huawei","H3C",5)

Select case SwitchKey

case 1

MsgBox "思科设备"

case 2

MsgBox "华为设备"

case 3

MsgBox "华三设备"

case else

MsgBox "未知设备"

End Select

(3) 其实SecureCRT支持的脚本语言就是VBS,这个脚本语言与VB有较大的不同,对于界面的支持性较差。不过也有几个对话性的函数

、InputBox :提示用户输入参数

temp = inputbox("提示用户你输入参数的名称","对话框的名称") :需要将输入的参数赋值给某一个参数进行使用。

、输出函数 msgbox

msgbox “给用户输出的信息对话框”

eg.求正方形面积的脚本

dim r,s
r=inputbox("请输入正方形的边长:","求正方形面积的程序")
s=r*r
msgbox(s)

-------------------------------------------------------------------------------------------

语句结构:

1. 顺序执行的脚本,举个网上泛滥的例子,那个自动登录系统的例子,稍加修改如下。

# $language = "VBScript"
# $interface = "1.0"

Sub Main
'连接主机192.168.0.2
crt.session.Connect("/telnet 192.168.0.2")
'等待出现登陆用户名提示login,等待时间是10s
crt.screen.WaitForString "login:",10
'输入用户名,回车
crt.screen.send "minico" & Chr(13)
'等待出现登陆密码提示login,等待时间是10s
crt.screen.WaitForString "Password:",10
'输入密码,回车
crt.screen.send "123456"

crt.screen.send Chr(13)
End Sub

2. 选择结构的脚本

if ... then ...else...结构和case结构见基础知识举例

3. 循环结构

 

 

 

脚本实例

#=====================================================

# $language = "VBScript"
# $interface = "1.0"
'============================================================================================='
'    程序名称:AIX.VBS
'    程序说明:AIX主机系统配置/巡检脚本
'    作者:郑继东
'    完成时间:2008-5-7
'============================================================================================='

'============================================================================================='
'    程序全局变量区
'============================================================================================='
dim ip

'============================================================================================='
'    程序全局常量区
'============================================================================================='
' button parameter options
Const ICON_STOP = 16                 ' display the ERROR/STOP icon.
Const ICON_QUESTION = 32             ' display the '?' icon
Const ICON_WARN = 48                 ' display a '!' icon.
Const ICON_INFO= 64                  ' displays "info" icon.
Const BUTTON_OK = 0                  ' OK button only
Const BUTTON_CANCEL = 1              ' OK and Cancel buttons
Const BUTTON_ABORTRETRYIGNORE = 2    ' Abort, Retry, and Ignore buttons
Const BUTTON_YESNOCANCEL = 3         ' Yes, No, and Cancel buttons
Const BUTTON_YESNO = 4               ' Yes and No buttons
Const BUTTON_RETRYCANCEL = 5         ' Retry and Cancel buttons
Const DEFBUTTON1 = 0        ' First button is default
Const DEFBUTTON2 = 256      ' Second button is default
Const DEFBUTTON3 = 512      ' Third button is default

' Possible MessageBox() return values
Const IDOK = 1              ' OK button clicked
Const IDCANCEL = 2          ' Cancel button clicked
Const IDABORT = 3           ' Abort button clicked
Const IDRETRY = 4           ' Retry button clicked
Const IDIGNORE = 5          ' Ignore button clicked
Const IDYES = 6             ' Yes button clicked
Const IDNO = 7              ' No button clicked

'============================================================================================='
'    程序辅助函数区
'============================================================================================='

'登陆函数
Function login
    '定义IP地址,登陆用户名,密码变量
    dim    passwd
    dim username

    Dim result
    Dim flag
    flag =1
    '断开主机连接
    crt.session.Disconnect

    '开启对话框,取得IP地址,登陆用户名称,密码等变量
    ip = crt.Dialog.Prompt("请输入服务器IP地址:", "AIX", "192.1.1.207", false)
    If (Trim(ip) = "")  Or (ip = IDABORT) Then
        result = crt.Dialog.MessageBox("您没有输入登陆的IP地址,CRT将被退出!", "提示信息",ICON_INFO)
        crt.quit
    End If

    flag =1
    While flag = 1
        username = crt.Dialog.Prompt("请输入登陆用户名:", "AIX", "root", false)
        If     username = IDABORT Then
            result = crt.Dialog.MessageBox("您选择了没有输入用户名称,CRT将被推出!", "提示信息",ICON_INFO)           
            crt.quit
        End If

        If (Trim(username) = "")Then
            result = crt.Dialog.MessageBox("请输入登陆用户名称!", "提示信息",ICON_INFO)
        Else
            flag = 0
        End If
    wend

    passwd = crt.Dialog.Prompt("请输入登陆用户密码:", "AIX", "congine", true)

    '连接主机
    crt.screen.Synchronous = true
    crt.session.Connect("/telnet " & ip)
    '等待出现登陆用户名提示login,等待时间是10s
    crt.screen.WaitForString "login:"
    '输入用户名,回车
    crt.screen.send username & chr(13)

    '等待出现登陆密码提示login,等待时间是10s
    crt.screen.WaitForString "Password:"
    '输入密码,回车
    crt.screen.send passwd & chr(13)
    If crt.screen.WaitForString("invalid login name or password", 3) = True Then
        result = crt.Dialog.MessageBox("服务器登陆失败,请检查IP地址、用户名、密码是否输入正确!", "提示信息",ICON_INFO)
        crt.quit
    End If
    crt.screen.Synchronous = false
End Function

'记录当前会话日志函数
Function writelog   
    Dim result
    Dim logfilename
    Dim flag
    flag =1

    While flag =1
        logfilename = crt.Dialog.Prompt("请输入本次会话LOG文件位置", "AIX", "c:\"  & ip &".log", false)
        If Trim(logfilename) = ""  Or  (logfilename = IDABORT) then
            result = crt.Dialog.MessageBox("强烈建议保存会话日志", "提示信息",ICON_INFO)
        Else
            flag = 0
        End if
    wend
    crt.session.LogFileName = logfilename
    crt.session.Log(true)
End Function

Function  setline
    crt.screen.send chr(13) & chr(13)
'    crt.Sleep 1000
End Function

Function setcommand(cmdstr, sec)
    setline
    sec = sec * 1000
    crt.screen.send cmdstr & Chr(13)
    crt.Sleep sec
End Function

'取得服务器基本信息
Function get_machinfo

    '主机基本信息
    setcommand "hostname",1
    setcommand "prtconf |grep 'Machine Serial Number'",6
    '主机设备情况
    setcommand "lsdev -C |grep proc",2
    setcommand "lsattr -El mem0",2
    setcommand "lsdev -Cc disk",2
    setcommand "lsdev -Cc adapter",2
    setcommand "lsdev -Cc tape",2

    '主机网卡情况
    setcommand "ifconfig -a",2
    setcommand "more /etc/hosts",2

    '主机软件信息
    setcommand "uname -a ",2
    setcommand "oslevel -s",5
    setcommand "instfix -i |grep ML",10

    '主机卷组信息
    setcommand "lsvg ",2
    setcommand "lsvg -o",2
    setcommand "lsvg -l rootvg",2

    '主机文件系统信息
    setcommand "df -g ",2

    '主机日志信息
    setcommand "errpt ",2
    setcommand "errpt  -a",2
    setcommand "sysdumpdev -l ",2

    '主机系统性能
    setcommand "lsps -a",2
    setcommand "vmstat 2 10",25
    setcommand "iostat 2 10",25

End Function

'============================================================================================='
'    程序主函数(main)区
'============================================================================================='

'主函数
Sub Main
    Dim result
'    crt.screen.Synchronous = true
    '系统登陆
    login

    '写日志
    writelog

    '取得服务器信息
    get_machinfo
    result = crt.Dialog.MessageBox("信息收集完毕,是否推出CRT?", "提示信息", ICON_QUESTION Or BUTTON_YESNO Or DEFBUTTON2)
    If    result = IDYES Then
        crt.quit
    End If

    '结束会话日志
    crt.session.Log(false)
'    crt.screen.Synchronous = false
End Sub

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