Refer to the exhibit.

What occurs when the script runs?
The diff command is used to compare the contents of two files and display the differences. The -u option stands for 'unified' and shows the differences in a unified format, which includes the lines that differ between the two files along with a few lines of context.
When running the command diff -u file1.txt file2.txt, it compares the two files and shows the differences between them.
GNU Diffutils: Unified Format
Brittni
9 months agoRosina
9 months agoGaston
10 months agoElina
10 months agoDaniela
10 months agoLigia
10 months agoAlyce
11 months agoWilda
11 months agoMariko
11 months agoKeith
11 months agoCorazon
11 months agoLaurel
11 months agoMing
11 months agoStanford
11 months agoMollie
2 years agoOliva
2 years agoBlair
2 years agoPamella
2 years agoMalika
2 years agoJaney
2 years agoTennie
2 years agoMitzie
2 years agoEvangelina
2 years agoEvangelina
2 years agoMargart
2 years agoJacqueline
2 years agoBrittani
2 years agoNickie
2 years agoMickie
2 years ago