find files that have number in file name greater than

Question

If I have 10 files called 01-a.txt, 02-a.txt,...10-a.txt - how can I find the files where the number is greater than 5? I would like a general solution, and I would be putting the contents of all files into one file using something like

cat *.txt > bigfile.txt

I can get files with numbers using

ls *[0-9]*

but can't seem go beyond that.

thanks.

Answer 1

Assuming the folder contains only these files.

This would list all files where the number is > 5

ls [0-9]* | awk -F '-' '{if ($1 > 5) print $0}'