I am new to splunk and am using the trial version.
I wanted to try out the uberagent but in the documentation there is supposed to be a install apps from file but I do not see that option.
is this only available for the paid version?
You can see the option of Install app from file at Apps-> Manage Apps page as like below and you can download the app form Splunk base https://splunkbase.splunk.com/app/1448/ and can install the app:
You can untar the downloaded app tgz file form Splunk base at /opt/splunk/etc/apps/ folder and restart the Splunk on your Splunk server it will install the app.