#printThe 'nu' command works the same way as 'p',except that it puts the line number to theleft of each line that it prints.I will put you in the editor with the file 'henry'.  Type1,$nuand then write, quit, and type ready as usual.Note that the line numbers do not actually become partof the text of the file, but just appear displayednext to it.#create henryMurray HillHolmdelWhippanyMadisonPiscatawayChesterWarren#pipe#copyinex +'set prompt noopt open' henry#user#uncopyin#unpipegrep '1,$nu' .copy > /dev/null#log#next14.1a 1014.2a 5