For example, getting the title of `konsole` window current interactive `bash` instance is running in:

 #!/bin/bash
 
 get_title() {
 
 local pid=$$
 local pids=`pstree -lpsT $pid | tr '-' '\n' | tac | xargs | grep -oE '[0-9]+'`
 
 for pid in $pids
 do
 local wid=`xdotool search --pid $pid`
 if [ ! -z "${wid}" ]
 then
 echo `xdotool getwindowname $wid`
 exit
 fi
 done
 }
 
 get_title