bash wildcard n digits

Question

So I\'ve got the following files in the tmp directory:

 file.0
 file.1
 file.t9
 file.22
 file.4444

if I wanted to list only the files that

Answer 1

Another variant for filtering files of a specific extension is to use the find command with a set of predicates:

find tmp/ -type f -iregex '^.*\.[0-9]+$'

The -type predicate matches only files and the -iregex matches names that end with one or more digits - ignoring case of the name. If you want to filter files that begin with file you would use the following instead:

find tmp/ -type f -iregex '^.*/file\.[0-9]+$'

And finally, if you don't want the whole path displayed for each resulting file, use the following:

find tmp/ -type f -iregex '^.*/file\.[0-9]+$' -printf "%f\n"