Skip to main content

I am trying to write a script that will be an extension attribute that will check if the system hostname (scuitl --get HostName) is the same as the hostname that pops up in system preferences (scutil --get ComputerName).



This is the Bash Script I have been messing with and if you run it you can see the echos will literally show that the outputs are the exact same. But yet the if statement says they are different.



What am I doing wrong? Am I using the wrong condition? Or are the variables actually different someway on the back end?



The script in question



var1=$(scutil --get ComputerName)
var2=$(scutil --get HostName)
echo $var1
echo $var2
if [ "$var1" == "$var2" ]; then
echo same
echo "<result>Same</result>"
else
echo different
echo "<result>Different</result>"
fi


The script I am using to change the hostname, in a policy, that will scope to a smart group set by the attribute of the above script.



#set variable to system prefrences name
oldHostName=$(scutil --get HostName)
spHostName=$(scutil --get LocalHostName)
echo "
System Prefrences Hostname is: $spHostName
"
echo "
Current System Hostname is: $oldHostName
"

change hostname system wide to LocalHostName



echo "

Now setting sytem hostname to: $spHostName ...
"
sudo scutil --set HostName $spHostName
echo "Done!"
newHostName=$(scutil --get HostName)
echo "

System Hostname is now: $newHostName"
echo "

Now Exiting..."
exit

Are you sure you don't have any leading or trailing blanks or any other non-printing characters in any of the names? To detect issues like that I often do a "echo ${var1}".

Yeah almost sounds like trailing or leading space. White spaces can be strict if you pipe the scutil command into sed -e 's/^[ ]*//'

Reply


Terms & ConditionsCookie settings