I'm a student working on Perl program the class had us write an Admin Menu in week two that did the following below, for week 4 we are to write it in Perl. I've had two weeks of unix and 1 week of Perl. I have spent hours looking for the correct syntax to change my working programn in UNIX to Perl Script.I want to stress I don't want homework script answers I just need a bit of help with syntax and what commands to use in this new language. I've taken other languages COBOL, C+ and most recently java and html but still trying to find similarities so I can connect the dots. The assignment is: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: o Create a UNIX group. o Drop a UNIX group. o Create a user. o 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. Here is the code I have written thus far. I figured if I could get the first part working that the others would fall in place.

#! /usr/local/bin/perl –w
#Author: 
# 
$choice = 0;
Do{
Print “Admin Menu \n”;
Print “To add a user, press 1 \n”;
Print “To delete a user, press 2 \n”;
Print  “To Add a group, press 3  \n”;
Print  “To delete a group, press 4 \n”;
Print “to exit this menu, press 5 \n”;
Print “Please chose an option:”
$choice =<>;
chomp $choice;
Print “You chose option:  “;
Print $choice;
Print “\n”;
} while $choice < 1 || $choice > 5;
If ($choice == 1);
{ 
Do {
nUsername = <>;
Print “what is new users name?”;
#get new user name
Chomp $nUsername;
#check that new user name is a string
If   $nUsername =~ tr/A-Za-z0-9//c;
{
#check to see if user exists
if(getpwnam('$nUsername'))
print "User exists\n";
}
Else
{ 
$adduser = '/usr/sbin/adduser';
$cmd = qq($adduser --home $home --gecos $nUsername);
#get new user password
Do
{
Print “Please add password: \n”;
$nPassword = <>;
Print “Please re-enter password: \n”;
                    $nPasstest =<>;
}
                    While $nPassword !eq $nPasstest;
                Print “Please enter group for user:  \n”;
                nGroup= <>;
                #add user to group
                if  getgrnam($group)
                {
#check to see is group exists
print $group;
                  Print “already exists \n”;
#add user to group
                 Groupadd $nGroup;
                }
                Else
                    {#if group does not exist create group
                         groupadd $nGroup;
                        Print $nGroup;
                        Print “ has been added.\n”;
                    }
Else
{ 
Print “New username must be a string.”;
$nUsername  = \n;
} while $nUsername = \n;

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I tried to follow all recommendations for posting here. My apologies if I messed up the posting rules. I wanted to add what I am particularily looking for is the correct command to add a new group. However any other help would be appreciated. I am usng oracle vm with Ubuntu as a shell.

In reply to unix to perl questions by deyaneria

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