1 #!/bin/bash
2 #
3 #Delete_user - Automates the 4 steps to remove an account
4 #
5 ###############################################################
6 #Define Functions
7 #
8 ###############################################################
9 function get_answer {
10 #
11 unset ANSWER
12 ASK_COUNT=0
13 #
14 while [ -z "$ANSWER" ] #While no answer is given,keeping asking......
15 do
16 ASK_COUNT=$[ $ASK_COUNT + 1 ]
17 #
18 case $ASK_COUNT in #If user gives no answer in time allotted
19 2)
20 echo
21 echo "Please answer the question."
22 echo
23 ;;
24 3)
25 echo
26 echo "One last try...please answer the question."
27 echo
28 ;;
29 4)
30 echo
31 echo "Since you refuse to answer the question..."
32 echo "exiting program."
33 #
34 exit
35 ;;
36 esac
37 #
38 echo
39 #
40 if [ -n "$LINE2" ]
41 then #Print 2 lines
42 echo "$LINE1"
43 echo -e $LINE2"\c" # "-e" Deal with paticualar character,'\c' is oppsite with '\n'.
44 else #print 1 line
45 echo -e $LINE1"\c"
46 fi
47 #
48 # Allow 60 seconds to answer before time-out
49 read -t 60 ANSWER
50 done
51 #Do a little variable clean-up
52 unset LINE1
53 unset LINE2
54 #
55 } #End of get_answer function.
56 #
57 ##########################################################################
58 function process_answer {
59 #
60 unset ANSWER
61 echo "process_answer[y/n]?"
62 read -t 30 ANSWER
63 case $ANSWER in
64 y|Y|YES|yes|yEs|yeS|YEs|yES|Yes|YeS)
65 #If user answer "yes" ,do nothing.
66 ;;
67 *)
68 #If user answers anything but "yes",exit script
69 echo
70 echo $EXIT_LINE1
71 echo $EXIT_LINE2
72 echo
73 exit
74 ;;
75 esac
76 #
77 #Do a little variable clean-up
78 #
79 unset EXIT_LINE1
80 unset EXIT_LINE2
81 #
82 } ##End of process_answer function
83 #
84 #
85 #########################################################################
86 #End of Function Definitions #
87 # #
88 #########################################################################
89 # #
90 # #
91 ############# Mani Scripts ##############################################
92 # #
93 # #
94 # #
95 #########################################################################
96 #
97 ##Get name of User Accout to check
98 #
99 echo "Step #1 - Determine User Accout name to Delete "
100 echo
101 LINE1="Please enter the username of the user"
102 LINE2="account you wish to delete from system"
103 get_answer
104 USER_ACCOUNT=$ANSWER
105 #
106 #Call process_answer function
107 # if user answers anything but "yes" ,exit script
108 #
109 EXIT_LINE1="Because the account,$USER_ACCOUNT is not"
110 EXIT_LINE2="the one you wish to delete,we are leaving the script..."
111 process_answer
112 #
113 ############################################################################
114 #Check that USER_ACCOUNT is really an account on the system
115 #
116 USER_ACCOUNT_RECORD=$(cat /etc/passwd | grep -w $USER_ACCOUNT)
117 #
118 if [ $? -eq 1 ] #If the account is not found,exit script.
119 then
120 echo
121 echo "Account ,$USER_ACOUNT,not found."
122 echo "leaving the script..."
123 echo
124 exit
125 fi
126 #
127 echo
128 echo "I found this record:"
129 echo $USER_ACCOUNT_RECORD
130 echo
131 #
132 LINE1="Is this the correct User Account?[y/n]"
133 get_answer
134 #
135 #
136 #Call process_answer function:
137 # if user answer anything but "yes" .exit script
138 #
139 EXIT_LINE1="Because the account ,$USER_ACCOUNT,is not"
140 EXIT_LINE2="the one you wish to delete .we are leaving the script..."
141 process_answer
142 #
143 ##############################################################################
144 #Search for any running processes that belong to the use account
145 #
146 echo
147 echo "Step #2 - Find process on system belonging to user Account"
148 echo
149 echo "$USER_ACCOUNT has the following processes running:"
150 echo
151 #
152 ps -u $USER_ACCOUNT #List user processes running
153 case $? in
154 1) #No processes running for this user account
155 #
156 echo "There are no processes for this account currently running."
157 echo
158 ;;
159 0) #processes running for this User Account.
160 #Ask Script User if wants us to kill the processes.
161 #
162 unset ANSWER
163 LINE1="Would you like me to kill the processes(es)?[y/n]"
164 get_answer
165 #
166 case $ANSWER in
167 y|Y|yes|Yes|yEs|yeS|YEs|YeS|yES|YES) #if user answer 'yes'.
168 #
169 echo
170 #
171 #Clean-up temp file upon signals
172 trap "rm $USER_ACCOUNT_Running_Process.rpt" SIGTERM SIGINT SIGQUIT
173 #
174 #List user processes running
175 ps -u $USER_ACCOUNT_Running_Process.rpt
176 #
177 exec < $USER_ACCOUNT_Runnning_Process.rpt #make report Std Input
178 #
179 read USER_PROCESS_REC #First record will be blank
180 read USER_PROCESS_REC
181 #
182 while [ $? -eq 0 ]
183 do
184 #obtain PID
185 USER_PID=$(echo $USER_PROCESS_REC | cut -d " " -f1) # output a line of characters,'cut -d "," -f2' will select second
186 # part which splited by ",".Is same to" gawk '{print $2}' ".
187 kill -9 $USER_PID
188 echo "Killed process $USER_PID"
189 read USER_PROCESS_REC
190 done
191 #
192 echo
193 rm $USER_ACCOUNT_Running_Process.rpt # Remove temp report
194 ;;
195 *) #If user answers anything but "yes",do not kill
196 echo
197 echo "Will not kill the process(es)."
198 echo
199 ;;
200 esac
201 ;;
202 esac
203 #########################################################################################
204 # Create a report of all files owned by User Account
205 #
206 echo
207 echo "step #3 - Find files on system belonging to user account"
208 echo
209 echo "Creating a report of all files owned by $USER_ACCOUNT."
210 echo
211 echo "It is recommended that you backup/archive these files."
212 echo "and then do one of two things:"
213 echo " 1) Delete the files"
214 echo " 2) Change the files' ownership to a current user account."
215 echo
216 echo "Please wait .This may take a while..."
217 #
218 REPORT_DATE=`date +%y%m%d`
219 REPORT_FILE=$USER_ACCOUNT"_Files_"$REPORT_DATE".rpt"
220 #
221 #
222 find / -user $USER_ACCOUNT > $REPORT_FILE 2>/dev/null # How to use "find"
223 # #There don't deal with $USER's file.
224 echo
225 echo "Report is conplete"
226 echo "Namp of report: $REPORT_FILE"
227 echo "Location of report: `pwd`"
228 echo
229 ############################################################################################
230 # Remove User Account
231 echo
232 echo "Step #4 - Romove user account"
233 echo
234 LINE1="Do you wish to remove $User_Account's account from system?[y/n]"
235 get_answer
236 #
237 # Call process_answer function:
238 # if user answer anything but "yes" ,exit script
239 #
240 EXIT_LINE1="Since you do not wish to remove the user account."
241 EXIT_LINE2="$USER_ACCOUNT at this time ,exiting the script..."
242 process_answer
243 #
244 userdel $USER_ACCOUNT #delete user account
245 echo
246 echo "User account $USER_ACCOUNT has been removed"
247 echo
248 #
249 #
250 #END
251
252
