How do I match thes filenames with regex. File1,File2,file3,file4,file5,File7,file9

Question

İ need help to solve this question for my homework

Answer 1

We are going to need to see your attempt first

Answer 2

[Ff]ile[1-9]

Answer 3

Yeah it was because of case sensitivity

Answer 4

file[0-9]

Answer 5

İ figured it out

Answer 6

Thank you so much