How to list files in a directory that begin with a character but the filename is then followed by 8 lower-case characters?

Question

From the Linux CLI, using the bash shell, how to list files (using the ls command) in a directory where the filenames desired all begin with a character P but the rest of the filename is then followed by 8 lower-case characters? Tried the following but it does not work.

ls -las P[a-z]{8}

An example directory would have files like so:

Pasdfghjk    
Pqwertyui    
Pabcd    
Pads

where only the first two files are desired to be listed/returned to STDOUT. If the ls command cannot do this then what command or command sequence can?

Answer 1

Bash globs don't have a finite repetition operator ({8}), even with extglob enabled.

So you can pipe ls through grep:

ls -ls | grep -E 'P[a-z]{8}$'

(That's not perfect because it will match filenames which end with the pattern. But that might not be important in your case.)

Or you could expand the glob manually:

ls -ls P[a-z][a-z][a-z][a-z][a-z][a-z][a-z][a-z]