Find count of files matching a pattern in a directory in linux

Question

I am new to linux. I have a directory in linux with approx 250,000 files I need to find count of number of files matching a pattern.

I tried using following command :

Answer 1

ls -1 | grep '20061101-20131101_kh5x7tte9n_2010_*' | wc -l

Previous answer did not included quotes around search criteria neither * wildcard.