Multiple Numbers on a same line, but need to count the line as 1

Question

My sample file has several lines like this

27809, shbd.dav, 165 .
27673 ; matroshka;  223665;

I need to count the lines containing digits. So the output should be 2.

I only have to use grep to do this.

Answer 1

Try this:

grep -c '[[:digit:]]' infile

replace [[:digit:]] with [0123456789] if you want restrict digits to only English digits (see Difference between [0-9], [[:digit:]] and \d).