Thanks for elaborating: the ctrl-c as first port of call was assumed obvious from my side but the: " "kill INT %1" and then "kill TERM %1" before "kill KILL %1

Thanks for elaborating: the ctrl-c as first port of call was assumed obvious from my side but the: " "kill INT %1" and then "kill TERM %1" before "kill KILL %1". " is good advice as progressive measures