Use linux/unix cut command to perform specified operations:

Text file (scene1_v1.txt):

Scene 1 [wind] [clap clap] [clap clap] [clap clap] ARTHUR: Whoa there! ARTHUR: Whoa there! [clap clap] GUARD #1: Halt! Who goes there? ARTHUR: It is I, Arthur, son of Uther Pendragon, from the castle of Camelot. King of the Britons, defeator of the Saxons, sovereign of all England! GUARD #1: Pull the other one! ARTHUR: I am. And this my trusty servant Patsy. We have ridden the length and breadth of the land in search of knights who will join me in my court of Camelot. I must speak with your lord and master. GUARD #1: What, ridden on a horse? ARTHUR: Yes! GUARD #1: You're using cowbells! ARTHUR: What? GUARD #1: You've got two empty cowbells and you're bangin' 'em together. ARTHUR: So? We have ridden since the snows of winter covered this land, through the kingdom of Mercea, through-- GUARD #1: Where'd you get the cowbell? ARTHUR: We found them. GUARD #1: Found them? In Mercea? The cowbell's tropical! ARTHUR: What do you mean? GUARD #1: Well, this is a temperate zone. ARTHUR: The pigeon may fly south with the sun or the house martin or the plumber may seek warmer climes in winter yet these are not strangers to our land. GUARD #1: Are you suggesting cowbells migrate? ARTHUR: Not at all, they could be carried. GUARD #1: What -- a pigeon carrying a cowbell? ARTHUR: It could grip it by the husk! GUARD #1: It's not a question of where he grips it! It's a simple question of weight ratios! A five ounce bird could not carry a 1 pound cowbell. ARTHUR: Well, it doesn't matter. Will you go and tell your master that Arthur from the Court of Camelot is here. GUARD #1: Listen, in order to maintain air-speed velocity, a pigeon needs to beat its wings 43 times every second, right? ARTHUR: Please! GUARD #1: Am I right? GUARD #1: Am I right? ARTHUR: I'm not interested! GUARD #2: It could be carried by an African pigeon! GUARD #1: Oh, yeah, an African pigeon maybe, but not a European pigeon, that's my point. GUARD #2: Oh, yeah, I agree with that... ARTHUR: Will you ask your master if he wants to join my court at Camelot?! GUARD #1: But then of course African pigeons are not migratory. GUARD #2: Oh, yeah... GUARD #1: So they couldn't bring a cowbell back anyway... [wind] [clap clap] GUARD #2: Wait a minute -- supposing two pigeons carried it together? GUARD #1: No, they'd have to have it on a line. GUARD #2: Well, simple! They'd just use a standard creeper! GUARD #1: What, held under the dorsal guiding feathers? GUARD #2: Well, why not?

Step 3: - Use the cut command A. Using the delimiter , display the name of the characters who are speaking in scene1 v1.txt (make sure to ignore any lines that do not include the delimiter). Now use cut to only display the name of the characters that have had their lines altered from scene1 v1.txt to scene1 v2.txt. B