mostcomm

Finds the most common ranges in multiple files. Algorithm could be smarter, but it does the job.

Example

Imagine we have these files:

a.txt:

1
2
3
4
5
6
7
8
9
10

b.txt:

1
2
3
4
5


6
7
8
9
10

c.txt:

6
7
8
9
10
6
7
8
9
10

When we run mostcomm with the arguments:

mostcomm -dir ./testdata -mask '*.txt'

We expect the answer:

2023/02/27 22:57:22 Scanning a.txt
2023/02/27 22:57:22 Scanning b.txt
2023/02/27 22:57:22 Scanning c.txt
3 files scanned
11 unique lines scanned
32 total lines scanned
2 Duplicate runs
- a.txt:0-4 (5), b.txt:0-4 (5)
- a.txt:5-9 (5), b.txt:7-11 (5), c.txt:0-4 (5), c.txt:5-9 (5)

FAQ Why?

Why not? I was going to solve this problem with the shell then decided to write something for it.