Search Results

-c option will give counts for line which have match string, it is not counting the no of occurrence in each line.

the -c is for the count...
I suggest you test without and see for yourself!
To give you an idea:

$ grep -E h 0003.data
aah
haahed haahed
aahing
aahs
harward
$ grep -Ec h 0003.data
5
...

grep -Ec a file

Like so:grep -Ec "h.*a|a.*h" file
4