Assume a file named "tiobelndex" containing the ratings of programming languages as follows. There are six fields in each line separated by comma. The first filed is the ranking in September this year. The second filed is the ranking in September last year. The first row shows the meaning for each field, the remained rows show the rating information for the top 10 programming languages. Write commands to finish following tasks. inimitrioncool Sep 2017, Sep 2016, Change, 1, 1, 2 2, 3 3, 4, 4, 5 5, 6 7, 7 6, 8 9, 9 10, 12, Programming Language, Java, C, C++, C#, Python, PHP, JavaScript, Visual Basic .NET, Perl, Ruby. Ratings, Change 12.687%, -5.55% 7.382%, -3.57% 5.565%, -1.09% 4.779%, -0.71% 2.983%, -1.32% 2.210% -0.64% 2.017%, -0.91% 1.982%. -0.36% 1.952%. -0.38% 1.933% -0.03% Question 29 (3 points) Count the number of programming languages which ranked higher than September last year using wc and grep or egrep. (Hint: A plus sign in the third field shows that the rank is increased compared to September last year.)