Create an awk script called calculeExpense.awk (Use the appropriate shebang) that will accpret a comma separated file where the columns are:

first column: users name second column: hourly rate third column: hours worked

Calculate the total money spent in salaries. (sum all of column 2 * column 3). Here's an example:

Grace Hopper,20,32 Larry Wall,45,25 James Clark,15,40