Count all occurrences of a string in lots of files with grep

Question

I have a bunch of log files. I need to find out how many times a string occurs in all files.

grep -c string *

returns

...
f         


        

Answer 1

Another oneliner using basic command line functions handling multiple occurences per line.

 cat * |sed s/string/\\\nstring\ /g |grep string |wc -l