Convert your second shell script (User Maintenance) into a Perl script. This Perl script must perform the following tasks:Generate a menu to ask the system administrator for the task that he or she wo

Convert your second shell script (User Maintenance) into a Perl script. This Perl script must perform the following tasks:

• Generate a menu to ask the system administrator for the task that he or she would like to see performed.
• The available tasks are as follows:  
  • Create a UNIX group.
  • Drop a UNIX group.
  • Create a user.
  • Drop a user. 
• Prompt the user for the choice, and perform the system command.
• In  addition, check to make sure that before creating either the user or  the group that neither already exists; if it does already exist, print  out the existing user ID, comment field, and home directory locations  from the password file. 

Include a discussion about what regular expressions are and how Perl  efficiently includes regular expression processing in the language. Be  sure to state examples.

• Add the Perl code and the discussion about Regular Expressions to the project template section "Writing Perl Programs."
• Name the document yourname_CS345__IP4.doc.