clear
#################################################################
# script_2, version 01,  Claudio Rocha                          #
# This is a Bourne Shell Script                                 #
# Usage:  script_2                                              #
# This Script is written "Homework" -  Dr. Halasa               #
#################################################################

while true
do
clear
user=`/usr/ucb/whoami`
if [ $user = root ]
then 
	echo "Script will run all options, because you logged in as root"	
else
        echo "\n\n\n"
	echo "Warning...$user, some of the options may not work,"
	echo "          you must be logged as root to gain full"
	echo "          menu options access"
fi

echo "\n\n"

echo "Would you like to continue  [y/n - default=n]:_\b\c"
read ans
ans=${ans:-n}

if [ $ans = y ]
then

while true
do
clear
echo
echo
#######################################################
echo "                     Utilitiers Menu"
#######################################################
echo
echo "                     1 -- Display Calendar for Current Year"
echo "                     2 -- Display Calendar for Current Month"
echo "                     3 -- Display Current Date and Time"
echo "                     4 -- Display Users Without Password"
echo "                     5 -- Display Information Current Logged Users"
echo "                     6 -- Look for Files with Setuid Permissions" 
echo "                     7 -- Look for Files Bigger than [n]MB"
echo "                     8 -- EXIT"
echo
echo "                     Please choose option: _\b\c"
read option
option=${option:-8}

###############################################
# Check options for License Administration Menu
###############################################

#########################
if [ $option = 1 ]
then
        clear
        echo "##################################"
        echo "Display Calendar for Current Year"
        echo "##################################"
        echo
        year=`date |cut -d" " -f6`
        cal $year |more
        echo "Press Enter to continue..."
        read _ENTER   

#########################
elif [ $option = 2 ]
then
        clear
        echo "##################################" 
        echo "Display Calendar for Current Month"
        echo "##################################" 

        echo
        monyh=`date |cut -d" " -f2`
        cal $month
        echo "Press Enter to continue..."
        read _ENTER   

###########################
elif [ $option = 3 ]
then
        clear
        echo "#############################" 
        echo "Display Current Date and Time"
        echo "#############################"
        echo
        date 
        echo
        echo "Press Enter to continue..."
        read _ENTER   

########################
elif [ $option = 4 ]
then
        clear
        echo "##############################"
        echo "Display Users Without Password"
        echo "##############################"
        if [ $user = root ]
	then
		echo  				 
        	logins -p |more 
   		echo
        	echo
        	echo "Press Enter to continue..."
        	read _ENTER
        		
        else 		
		echo 
		echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++" 
                echo "+                                                    +"
		echo "+    This option only works with root provilegies    +"  
		echo "+                                                    +"
                echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++"	
                echo
                echo "YOU MUST BE LOGGED IN AS ROOT TO READ THIS FILE..."
                echo
                echo "Press Enter to continue..."
                read _ENTER
         fi

#######################
elif [ $option = 5 ]
then
        clear
        echo "########################################" 
        echo "Display Information Current Users Logged"
        echo "########################################" 
        echo
        w 
        echo
        echo "Press Enter to continue..."
        read _ENTER   

#######################
elif [ $option = 6 ]
then
        clear
        echo "######################################" 
        echo "Look for Files with setuid Permissions"
        echo "######################################" 
        echo
		echo 
		echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++" 
                echo "+                                                    +"
		echo "+    This option only works with root provilegies,   +"  
                echo "+    but you can still run it with limited access.   +"
                echo "+                                                    +" 
                echo "+    >>>>>>>>>look for /tmp/chkuid.log<<<<<<<<<<<<<  +"
		echo "+                                                    +"
                echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++"	
                echo
                echo "YOU MUST BE LOGGED IN AS ROOT TO READ THIS FILE..."
                echo 
        echo "Press Enter to continue..."
        read _ENTER   
        find / -user root -perm -4000 -exec ls -ldb {} \; > /tmp/chkuid.log
        echo
        echo
        echo "Press Enter to continue..."
        read _ENTER  


#######################
elif [ $option = 7 ]
then
        clear 
        echo "##################" 
        echo "Look for Big Files"
        echo "##################" 
        echo
                echo 
                echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++" 
                echo "+                                                    +"
                echo "+    This option only works with root provilegies,   +"  
                echo "+    but you can still run it with limited access.   +"
                echo "+                                                    +" 
                echo "+    >>>>>>>>>look for /tmp/chkbig.log<<<<<<<<<<<<<  +"
                echo "+                                                    +"
                echo "++++++++++++++++++++++++++++++++++++++++++++++++++++++"   
                echo
                echo "YOU MUST BE LOGGED IN AS ROOT TO FIND ALL THE FILES..."
                echo 
        echo "Press Enter to continue..."
        read _ENTER  
        echo
        echo "Choose the size of the files you would like to look"
        echo "The size must be in MB -  e.g. 1=1MB, 2=2MB...n=nMB" 
        echo  
        echo "Look for files in my system bigger than [MB]: _\b\c" 
        read size_big
        size=`expr $size_big \* 2048`
        echo
        read g 
        find / -size +$size -type f > /tmp/chkbig.log
        echo
        echo
        echo "Press Enter to continue..."
        read _ENTER 
 

#######################
elif [ $option = 8 ]
then
        echo
        echo "#####################################################"
        echo "Thanks --  Exiting License Administration Script....."
        echo "#####################################################"
        sleep 1
        clear
        echo done.
        exit 15
else
        echo
        echo "Invalid Option"
        sleep 2
fi
done

elif [ $ans = n ]
then
	echo "exiting script..."
	sleep 2
	clear
	echo done.
	exit 15 
else
	echo "Invalid Option!"
	sleep 2
fi
done