Need assistance and examples to start a report based upon the following information generated from any UNIX like interface, preferably Ubuntu or Cygwin. Need UNIX scripts for the following actions: (1) A script to automate the shutdown process and a description of the UNIX run levels, (2) Scripts to automate user and group maintenance, kill the processes (and session) of a user, (3) menu driven Perl program for various UNIX commands and a discussion about Perl variables, (4) A Perl program that can be used to create and drop users and groups, and a discussion about Perl's usage or regular expressions (5) A completed Perl program and a discussion about compiling a C program. Please generate the information for each of the 5 areas defined above as I will be adding this in to a report in which I already have a table of contents for. Each script should be followed with a general information about that script similar to an user manual or instruction standard operating procedure.