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Powershell function

Posted on 2013-06-05
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Last Modified: 2013-06-05
Im trying to use Powershell to ping an IP address, and if failed send an email, so Ive written the following code:-

tryPing "Test IP 1" "192.168.2.254"

Function tryPing($serverName, $serverIP){
    $server = $serverName
    $ip = $serverIP

    $ping = new-object System.Net.NetworkInformation.Ping
    $rslt = $ping.send($ip)
        if ($rslt.status.tostring() –eq "Success") {
            write-host ping worked on $server with $ip -ForegroundColor Green}
        else {
            write-host ping failed on $server with $ip -ForegroundColor Red
        
            # Send E-Mail
            $msg = new-object Net.Mail.MailMessage
            $smtp = new-object Net.Mail.SmtpClient("smtpserver")
    
            $msg.From = "pingchecker@mydomain.co.uk"
            $msg.To.Add("myemail1")
            $msg.To.Add("myemail2")
            $msg.Subject = "Warning: ping failed on $server"
            $msg.Body = "The server $server with ip adres $ip does not reply!"
                
            $smtp.Send($msg)
            }
	}

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However I cannot seem to get the function call working correctly, as I keep getting an error saying:-
The term 'tryPing' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again.

I am a kinda beginner with Powershell, and cant figure out whats wrong, any assistance would be appriciated.

Thank you
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Question by:tonelm54
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2 Comments
 
LVL 42

Accepted Solution

by:
sedgwick earned 500 total points
ID: 39221777
change the order of the call and function declaration:
Function tryPing($serverName, $serverIP){
    $server = $serverName
    $ip = $serverIP

    $ping = new-object System.Net.NetworkInformation.Ping
    $rslt = $ping.send($ip)
        if ($rslt.status.tostring() –eq "Success") {
            write-host ping worked on $server with $ip -ForegroundColor Green}
        else {
            write-host ping failed on $server with $ip -ForegroundColor Red
        
            # Send E-Mail
            $msg = new-object Net.Mail.MailMessage
            $smtp = new-object Net.Mail.SmtpClient("smtpserver")
    
            $msg.From = "pingchecker@mydomain.co.uk"
            $msg.To.Add("myemail1")
            $msg.To.Add("myemail2")
            $msg.Subject = "Warning: ping failed on $server"
            $msg.Body = "The server $server with ip adres $ip does not reply!"
                
            $smtp.Send($msg)
            }
	}

tryPing "Test IP 1" "192.168.2.254"

Open in new window

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LVL 40

Expert Comment

by:Subsun
ID: 39221784
Copy paste the code to PowerShell console and then press enter, once it return the prompt test your function..

tryPing "Test IP 1" "192.168.2.254"
                                           
Or save the function code to a .ps1 file and load script file with cmdlet definition. You can do this by typing a Dot, a space, and then the path to the file. There has to be a space between the dot and the file name, otherwise it wont work.

PS>. C:\tryPing.ps1
PS>tryPing "Test IP 1" "192.168.2.254"
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