Section $1-$ Basic grep Commands $1.$ Log in to your Pi as a regular $($non$-$root and non$-$admin$)$ user, then open a terminal window andnavigate to $/$usr$/$share$/$common$-$licenses$/2.$ Run the following command: grep "GNU" GPL$-33.$ Modify the command in #$2$ so that it displays the total number of lines containing matches. a$.$ How many lines are there? b$.$ What command did you enter for this step?$4.$ Modify the command in #$2$ so that it returns the number of matches. $($We saw how to do thiswith pipes in the lecture videos.$)$a$.$ How many matches are there?b$.$ What command did you enter for this step?$5.$Modify the command in #$4$ so that it returns the number of case$-$insensitive matches $($meaningit doesn't care about capitalization$)$a$.$ How many matches are there? b$.$ What command did you enter for this step?$6.$ This shows all lines in GPL$-3$ ending with a capital lettergrep $"[$A$-2]$S$"$ GPL$-3$