Wildcard in bash script

Question

I have a bash script to retrieve files from ftp.

Now the files have one part a date string in the filename, but also undefined numbers that changes on every file. I want

Answer 1

With the ? characters you include not only numbers, but any character. So if you want to include only numbers, you can replace the ??? characters with [0-9][0-9][0-9].

Example:

If you have the following files:

$ ls 0123vel.h5 0333vel.h5 033vel.h5 0pecvel.h5

with this ls you show the correct files:

$ ls 0[0-9][0-9][0-9]vel.radar.h5 0123vel.h5 0333vel.h5