Use the uniq command to perform task (linux/unix): Text file 1 (scene1_v1.txt):

Question

Use the uniq command to perform task (linux/unix):

Text file 1 (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?

Text file 2 (scene1_v2.txt):

Scene 1

      [wind]
      [clop clop]
      [clop clop]
      [clop clop]
ARTHUR: Whoa there!
ARTHUR: Whoa there!
      [clop clop]

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 coconuts!
ARTHUR: What?
GUARD #1: You've got two empty halves of coconut 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 coconut?
ARTHUR: We found them.
GUARD #1: Found them? In Mercea? The coconut's tropical!
ARTHUR: What do you mean?
GUARD #1: Well, this is a temperate zone.
ARTHUR: The swallow 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 coconuts migrate?
ARTHUR: Not at all, they could be carried.
GUARD #1: What -- a swallow carrying a coconut?
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
      coconut.
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 swallow
      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 swallow!
GUARD #1: Oh, yeah, an African swallow maybe, but not a European
      swallow, 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 swallows are not migratory.
GUARD #2: Oh, yeah...
GUARD #1: So they couldn't bring a coconut back anyway...
      [wind]
      [clop clop]
GUARD #2: Wait a minute -- supposing two swallows 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?

Use uniq to show how many times each character has had their lines altered from scene1 v1.txt to scene1_v2.txt. **As a note on uniq, only compares adjacent lines. To find all repeated lines, the text must be sorted** B.

Explanation / Answer

Use the following command

sort scene1_v1.txt scene1_v2.txt | uniq -u | grep -v "^ "

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