Dear Sir,

You can use ^ to force a regex to match only at the start of a line.

As we have written grep "^A", this command will search "A" at the start of the each line in grepdemo.txt file and return roll number starting with A.

All names starting with "A" are present in between the line and not at the start of line. That's why regex doesn't highlight the name.

--

Rohan