Solved: Restart Computer After X Days of Uptime - Jamf Nation Community - 262581

Can't recall where we got this, but here's an Extension Attribute to see how many days, hours, and minutes a Mac has been up.

#! /bin/sh

# if $4 from `uptime` is "mins," then the system has been up for less than an hour.
# We set $timeup to the output of $3, appending only "m".
timechk=`uptime | awk '{ print $4 }'`

if [ $timechk = "mins," ]; then
timeup=`uptime | awk '{ print $3 "m" }'`

# if $4 is "days," then we generate a readable string from $3, $4, and $5;
elif [ $timechk = "days," ]; then

timeup=`uptime | awk '{ print $3 $4 " " $5 }' | sed 's/days,/d/g' | sed 's/:/h /g' | sed 's/,/m/g'`

# otherwise, generate a readable string from $3.
else

timeup=`uptime | awk '{ print $3 }' | sed 's/:/h /g' | sed 's/,/m/g'`

fi

echo "<result>$timeup</result>"

I have an EA that checks for uptime

and if you set your EA Data Type to "Date" you can query it through a smart group. After that you can create policies to reboot them, or nag them to reboot, at least.  I use a Jamf Helper pop up window with option to "esc" close removed, then their choices are "Reboot Now" or "Reboot Later" with a drop down picking a forced reboot countdown. 

 repp