I'm using grep to match string in a file. Here is an example file:
example one,
example two null,
example three,
example four null,
grep -i null myfile.txt
returns
example two null,
example four null,
How can I return matched lines together with their line numbers like this:
example two null, - Line number : 2
example four null, - Line number : 4
Total null count : 2
I know -c returns total matched lines, but I don't how to format it properly to add total null count
in front, and I don't know how to add the line numbers.
What can I do?
Best Answer
-n
returns line number.-i
is for ignore-case. Only to be used if case matching is not necessaryCombine with
awk
to print out the line number after the match:Use command substitution to print out the total null count: