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Why isn't my Computer Naming script working

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The prefix is showing up on the device, but it's not pulling down the serial. I've even tried a few commands I've seen on these forums, and it still won't grab the serial. I am learning scripting, and only know basic commands. I took over for the previous sys admin who left, and he could never get the script to work either. 


MODEL=$(sysctl hw.model)


if [[ $MODEL == *"Book"* ]]
then
PREFIX="TRML-"
else
PREFIX="TRM-"
fi


SERIAL=$(ioreg -rd1 -c IOPlatformExpertDevice | awk -F'"' '/IOPlatformSerialNumber/{print $7}')

COMPUTERNAME="${PREFIX}${SERIAL}"

/usr/sbin/scutil --set ComputerName $COMPUTERNAME
/usr/sbin/scutil --set LocalHostName $COMPUTERNAME
/usr/sbin/scutil --set HostName $COMPUTERNAME

 

 

Best answer by karthikeyan_mac

ioreg in your script does not seem to be working. Change it as below. You can use system_profile command as well. Add update inventory in the policy to report back the new name. 

ioreg -rd1 -c IOPlatformExpertDevice | awk -F'"' '/IOPlatformSerialNumber/{print $4}'

 

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    dwbergstrom
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    • dwbergstrom
    • New Contributor
    • 14 replies
    • January 12, 2022

    Here's a couple alternatives to the ioreg command to get the serial number if you wanted to try them in its place:

    system_profiler SPHardwareDataType | grep "Serial Number (system)" | awk '{ print $4 }'

    or

    system_profiler SPHardwareDataType | awk '/Serial/ {print $4}'

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    aparten11
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    • cbrewer
    • Esteemed Contributor
    • 719 replies
    • January 12, 2022

    I would suggest adding a sleep 1 between your scutil commands. Otherwise you may see that your name change didn't fully work.

    /usr/sbin/scutil --set ComputerName $COMPUTERNAME sleep 1 /usr/sbin/scutil --set LocalHostName $COMPUTERNAME sleep 1 /usr/sbin/scutil --set HostName $COMPUTERNAME sleep 1

     

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    • jasonz79
    • New Contributor
    • 1 reply
    • January 13, 2022

    I think you need the command jamf recon for uploading the new computer name to Jamf Pro. Otherwise the computer name will be changed back after next check in.

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    karthikeyan_mac
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    • karthikeyan_mac
    • Honored Contributor
    • 281 replies
    • Answer
    • January 13, 2022

    ioreg in your script does not seem to be working. Change it as below. You can use system_profile command as well. Add update inventory in the policy to report back the new name. 

    ioreg -rd1 -c IOPlatformExpertDevice | awk -F'"' '/IOPlatformSerialNumber/{print $4}'

     

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    mm2270
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    • mm2270
    • Legendary Contributor
    • 7880 replies
    • January 13, 2022

    As @karthikeyan_mac mentioned, you have the wrong column being printed in the awk section with your original command. Change it to print $4 like noted above and it should pull the serial number. The other alternative ways to grab the serial mentioned by others here should also work.

    Tangentism
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    • Tangentism
    • Honored Contributor
    • 144 replies
    • January 13, 2022
    jasonz79 wrote:

    I think you need the command jamf recon for uploading the new computer name to Jamf Pro. Otherwise the computer name will be changed back after next check in.


    or use:

     

    jamf setComputerName -name $COMPUTERNAME

     

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    • braillle
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    • 20 replies
    • January 13, 2022
    karthikeyan_mac wrote:

    ioreg in your script does not seem to be working. Change it as below. You can use system_profile command as well. Add update inventory in the policy to report back the new name. 

    ioreg -rd1 -c IOPlatformExpertDevice | awk -F'"' '/IOPlatformSerialNumber/{print $4}'

     


    this fixed it. Thank you so much!!!! 

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    • braillle
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    • Contributor
    • 20 replies
    • January 13, 2022
    cbrewer wrote:

    I would suggest adding a sleep 1 between your scutil commands. Otherwise you may see that your name change didn't fully work.

    /usr/sbin/scutil --set ComputerName $COMPUTERNAME sleep 1 /usr/sbin/scutil --set LocalHostName $COMPUTERNAME sleep 1 /usr/sbin/scutil --set HostName $COMPUTERNAME sleep 1

     


    I got it working with a different ioreg command, but went ahead and added sleep between each command to avoid any possible issues. Thank you for the tip.

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    • daniel_behan
    • Valued Contributor
    • 194 replies
    • January 19, 2022

    The jamf binary can do this for you without even performing a lookup.  "/usr/local/jamf/bin/jamf setComputerName -useSerialNumber"

    Reply


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