Hi,

I face a problem where I could not able to grab the element value like as below in a file, a.txt

a.txt

15 1 2
150 2 3
156 3 4

I would like to grep value of 15 and also use the field. However, currently I have problem where grep would also grab the 150 and 156 as well.

My grep looks like this:-
i=`grep -n "^$char" a.txt|awk '{print $2}'`
echo $i

Output desired
1

Current Output
1
2
3

When I added a $ to uniquely identify the number, the second field is truncated.

Please help.