automatedeluseraccount.sh

#!/bin/bash
#
#Delete_User - Automates the 4 steps 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 $ask_count in   #If user gives no answer in time allotted
     2)
          echo
          echo "Please answer the question."
          echo
     ;;
     3)
          echo
          echo "One last try...please answer the question."
          echo
     ;;
     4)
          echo
          echo "Since you refuse to answer the question..."
          echo "exiting program."
          echo
          #
          exit
     ;;
     esac
#
     if [ -n "$line2" ]
     then               #Print 2 lines
          echo $line1
          echo -e $line2" \c"
     else                    #Print 1 line
          echo -e $line1" \c"
     fi
#
#     Allow 60 seconds to answer before time-out
     read -t 60 answer
done
# Do a little variable clean-up
unset line1
unset line2
#
}  #End of get_answer function
#
#####################################################
function process_answer {
#
answer=$(echo $answer | cut -c1)
#
case $answer in
y|Y)
# If user answers "yes", do nothing.
;;
*)
# If user answers anything but "yes", exit script
        echo
        echo $exit_line1
        echo $exit_line2
        echo
        exit
;;
esac
#
# Do a little variable clean-up
#
unset exit_line1
unset exit_line2
#
} #End of process_answer function
#
##############################################
# End of Function Definitions
#
############# Main Script ####################
# Get name of User Account to check
#
echo "Step #1 - Determine User Account name to Delete "
echo
line1="Please enter the username of the user "
line2="account you wish to delete from system:"
get_answer
user_account=$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 funtion:
#     if user answers anything but "yes", exit script
#
exit_line1="Because the account, $user_account, is not "
exit_line1="the one you wish to delete, we are leaving the script..."
process_answer
#
################################################################
# Check that user_account is really an account on the system
#
user_account_record=$(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
echo
#
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_line2="the one you wish to delete, we are leaving the script..."
process_answer
#
##################################################################
# Search for any running processes 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  #List user processes running.
 
case $? in
1)     # No processes running for this User Account
        #
     echo "There are no processes for this account currently running."
     echo
;;
0)   # Processes running for this User Account.
     # Ask Script User if wants us to kill the processes.
     #
     echo "$user_account has the following process(es) running:"
     ps -u $user_account
     #
     line1="Would you like me to kill the process(es)? [y/n]"
     get_answer
     #
     answer=$(echo $answer | cut -c1)
     #
     case $answer in
     y|Y)   # If user answers "yes",
            # kill User Account processes.
            #
            echo
            echo "Killing off process(es)..."
            #
            # List user process running code in command_1
            command_1="ps -u $user_account --no-heading"
            #
            # Create command_3 to kill processes in variable
            command_3="xargs -d \\n /usr/bin/sudo /bin/kill -9"
            #
            # Kill processes 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 process(es)."
     ;;
     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 a report of all files owned by $user_account."
echo
echo "It is recommended that you backup/archive these files,"
echo "and then do one of two things:"
echo "  1) Delete the files"
echo "  2) Change the files' ownership to a current user account."
echo
echo "Please wait. This may take a while..."
#
report_date=$(date +%y%m%d)
report_file="$user_account"_Files_"$report_date".rpt
#
find / -user $user_account> $report_file 2>/dev/null
#
echo
echo "Report is complete."
echo "Name of report:      $report_file"
echo -n "Location of report: "; pwd
echo
####################################
#  Remove User Account
echo
echo "Step #4 - Remove user account"
echo
#
line1="Do you wish to remove $user_account's account from system? [y/n]"
get_answer
#
# Call process_answer function:
#       if user answers anything but "yes", exit script
#
exit_line1="Since you do not wish to remove the user account,"
exit_line2="$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