Delete_User.sh

#!/bin/bash
#
#Delte_User - Automates the 4 staeps to remove an account
#
##
# Define Functions
#
##
function get_answer {
#
unset ANSWER
ASK_COUNT=0
#
while [ -z "$ANSWER"]    #While no answer is given, keep asking
do
    ASK_COUNT=$[ $ASK_COUNT + 1 ]
#
    case $ASK_COUNT in    #If user gives no answer in time allotted
        2 )
            echo
            echo "Please answer the question"
            echo
        ;;
        3 )
            echo
            echo "One last try...please answer the question"
            echo
        ;;
        4 )
            echo
            echo "Since you refuse to answer the question..."
            echo "exiting program"
            echo
            #
            exit
        ;;
    esac
#
    echo
#
    if [[ -n "$LINE2" ]]
    then                    #Print 2 lines
        echo $LINE1
        echo -e $LINE2 "  \c"
    else                    #Print 1 line
        echo -e $LINE1 "  \c"
    fi
#
#   Allow 60 seconds to answer before time-out
    read -t 60 ANSWER
done
# Do a little variable clean-up
unset LINE1
unset LINE2
#
}   #End of get_answer function
#
##
function process_answer {
#
case $ANSWER in
y|Y|YES|yes|Yes|yEs|yeS|YEs|yES )
# if user answers anything but "yes", exit script
    echo
    echo
    echo $EXIT_LINE1
    echo $EXIT_LIHE2
    echo
    exit
;;
esac
#
# Do a little variable clean-up
unset EXIT_LINE1
unset EXIT_LIHE2
#
} #End of process_answer function
#
##
# End of Function Definitions
#
##
# Get name of User Account to check
#
echo "Step #1 - Determine User Account name to Delete"
echo
LINE1="Please enter the username of the user"
LINE2="account you wish to delete from system:"
get_answer
USER_ACCOUNT=$ANSWER
#
# Double check with script user that this is the correct User Account
#
LINE1="Is $USER_ACCOUNT the user account "
LINE2="you wish to delete from the system? [y/n]"
get_answer
#
# Call process_answer function
# if user answers anything but "yes", exit script
#
EXIT_LINE1="Because the account, $USER_ACCOUNT, is not "
EXIT_LIHE2="the one you wish to delete, we are leaving the script..."
process_answer
#
##
# Check that USER_ACCOUNT is really an account on the system
#
USER_ACCOUNT_RECORD=$(cat /etc/passwd | grep -w $USER_ACCOUNT)
#
if [[ $? -eq 1 ]]   # if the account is not found, exit script
then
    echo
    echo "Account, $USER_ACCOUNT, not found "
    echo "Leaving the script..."
    echo
    exit
fi
#
echo
echo "I found this record:"
echo $USER_ACCOUNT_RECORD
#
LINE1="Is this the correct User Account? [y/n]"
get_answer
#
# Call process_answer function
# if user answers anything but "yes", exit script
#
EXIT_LINE1="Because the account, $USER_ACCOUNT, is not "
EXIT_LIHE2="the one you wish to delete, we are leaving the script..."
process_answer
#
##
# Search for any running rpocesses that belong to the User Account
echo
echo "#Step #2 - Find process on system belonging to user account"
echo
#
ps -u $USER_ACCOUNT >/dev/null #Are user process runing?
#
case $? in
1 ) # No processess running for this User Account
    #
    echo "There are no processes for this account currently running"
    echo
;;
0 ) # Processes running for this User Account
    # Ask Scirpt User if wants us to kill the processes
    #
    echo "$USER_ACCOUNT has the following processes running:"
    echo
    ps -u $USER_ACCOUNT
    #
    LINE1="Would you like me to kill the process(es)? [y/n]"
    get_answer
    #
    case $ANSWER in
    y|Y|YES|yes|Yes|yEs|yeS|YEs|yES )   # If user answers "yes"
                                            #kill User Account processes
        #
        echo
        echo "Killing off process(es)..."
        #
        # List user processes running code in variable, COMMAND_1
        #
        # Create command to kill process in variable, COMMAND_3
        COMMAND_3="xargs -d \\n /usr/bin/sudo /bin/kill -9"
        #
        # Kill process via piping commands together
        $COMMAND_1 | gawk '{print $1}' | $COMMAND_3
        #
        echo
        echo "Process(es) killed"
    ;;
    * )     #if user answers anything but "yes", do not kill
        echo
        echo "Will not kill the process(es)"
        echo
    ;;
    esac
;;
esac
##
# Create a report of all files owned by User Account
#
echo
echo "Step #3 - Find files on system belonging to user account"
echo
echo "Creating ad report of all file owned by $USER_ACCOUNT"
echo
echo "It is recommended that you backup/archive these files,"
echo "and then do one of two thins:"
echo "  1) Delte the files"
echo "  2) Change the files' ownership to a current user account"
echo
echo "Please wait. This may take a while..."
#
REPORT_DATE=$(date +%y%m%d)
REPORT_FILE=$USER_ACCOUNT"_Files_"$REPORT_DATE".rpt"
#
find / -user $USER_ACCOUNT > $REPORT_FILE>/dev/null
#
echo
echo "Report is complete"
echo "Name of report:   $REPORT_FILE"
echo "Location of report:   $(pwd)"
echo
##
#   Remove User Account
echo
echo "Step #4 - Reamve user account"
echo
#
LINE1="Remove $USER_ACCOUNT's account from system? [y/n]"
get_answer
#
# Call process_answer function
# if user answers anything but "yes", exit script
EXIT_LINE1="Since you do not wish remove the user account,"
EXIT_LIHE2="$USER_ACCOUNT at this time, exiting the script..."
process_answer
#
userdel $USER_ACCOUNT           #delete user account
echo
echo "User account, $USER_ACCOUNT, has been removed"
echo
#
exit