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