I want to write ".......some text Unable to reach on port <1234> some text ...." using a splunk query , how will I be doing this .
First you should create the query to get the servername and port data, like:
... | stats count by servername, port
And then make eval to concatenate text with servername and port like:
...| eval message = ".......some text Unable to reach " .servername. " on port " .port. " some text..."