diff unix how to show line number of the source file into the output

Question

I use diff to show differences in two files.

I want to show Line number in the result of the source into the output.

Example :

File A.csv

1 Test

2 Essai

3 Same

File B.csv

1 Appli

2 Essai

3 Another

**Diff result**

diff A.csv B.csv

1 Test | Appli

3 Same | Another

Your sample input and expected output is not clear, please do EDIT your post and wrap samples in CODE TAGS. — RavinderSingh13, Dec 12 '19 at 06:37

score 0 · Answer 1 · answered Dec 13 '19 at 12:24

0

This is an example where you could use the technique of What is "NR==FNR" in awk?
Another solution might be

paste -d"|" A.csv B.csv | nl |  grep -Ev '^(\s*[0-9]*\s*)(.*)\|\2$'

answered Dec 13 '19 at 12:24

Walter A

1 Answers1