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Has Wi/Fi Extension Attributes

  • February 16, 2015
  • 4 replies
  • 49 views
L
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Hello, I am trying to create a Extension Attribute to show me which computers have a network called LP-Admin in their preferred network list. I found this script which will show all of their networks on a Macbook Air

networksetup -listpreferredwirelessnetworks en0

Not sure if that will be helpful for the script or not. I am completely new to scripting any help will be much appreciated.

Best answer by jesseshipley

It is pretty simple. You do an if statement where it looks to see if LP-Admin is in the resulting text of the command you mentioned. Extension attributes always look for whatever is between <result> and </result> so you echo the response for when it is true and for when it isn't. Hope this helps.

#!/bin/sh
if $(networksetup -listpreferredwirelessnetworks en0 | grep -q "LP-Admin"); then
    echo '<result>TRUE</result>'
else
    echo '<result>FALSE</result>'
fi

    4 replies

    J
    Forum|alt.badge.img+13
    • jesseshipley
    • Contributor
    • Answer
    • February 16, 2015

    It is pretty simple. You do an if statement where it looks to see if LP-Admin is in the resulting text of the command you mentioned. Extension attributes always look for whatever is between <result> and </result> so you echo the response for when it is true and for when it isn't. Hope this helps.

    #!/bin/sh
if $(networksetup -listpreferredwirelessnetworks en0 | grep -q "LP-Admin"); then
    echo '<result>TRUE</result>'
else
    echo '<result>FALSE</result>'
fi
    L
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    • lpadmin
    • Author
    • Contributor
    • February 16, 2015

    Thank you, I will try out.

    C
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    • Chris
    • Valued Contributor
    • February 16, 2015

    Just to add, on Macs with an internal NIC the WiFi interface is usually en1.
    You can use

    networksetup -listallhardwareports | egrep -A 2 "(AirPort|Wi-Fi)" | grep Device | awk '{print $2}'

    to get the WiFi interface dynamically

    J
    Forum|alt.badge.img+13
    • jesseshipley
    • Contributor
    • February 16, 2015

    Good catch @Chris. @lpadmin you should use this script instead if you have any Macs with built in ethernet.

    #!/bin/sh
#get wifi interface
interface= $(networksetup -listallhardwareports | egrep -A 2 "(AirPort|Wi-Fi)" | grep Device | awk '{print $2}')

#check for LA-Admin network
if $(networksetup -listpreferredwirelessnetworks $interface | grep -q "LP-Admin"); then
    echo '<result>TRUE</result>'
else
    echo '<result>FALSE</result>'
fi
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