List of error codes to find (and count) in all files in a directory

[tester_V]

Bowlofred! You pushed me in the right direction!
I think I fixed my script and it does what I want now.
It finds all the 'error codes' from the list in all my log files and prints them out in the format I want:

3-100x02
2-1001x03

Here is a final version of the snippet:

import os

list = ['100x02','1001x03']   # list of errors#
path = 'C:\\02'
for root,dirs, files in os.walk(path):
    for ef in  files :
        cur_ef = os.path.join(path,ef)
        if os.path.isfile(cur_ef):

            with open (cur_ef,'r') as fto_read  :
                count = 0
                er_nm = []
                for e_ln in fto_read :           # reading each line from a file #
                    for e_el in list :           # reading an element from the list #
                        if e_el in e_ln :
                            e_el=e_el.rstrip()
                            er_nm.append(e_el)
                            count+=1
                if count > 0:            
                    print ("Number of Errors - Name ---- >> ",str(count)+'-'+er_nm[0])

Thank you again for all your help!
I really appreciate it, you guys make my life easier.