Linux-bash-管理用户账号

Source: <<Linux 命令行与shell脚本编程大全（第二版）

脚本比较长，核查了两遍发现还是报错

root@ubuntu:/home/winnie# sh ./Delete_User
./Delete_User: line 9: syntax error near unexpected token `unset'

脚本如下

#!/bin/bash##Delete_User-Automates the 4 steps to remove an account#############Define Functions############function get_answer{#unset ANSWERASK_COUNT=0#while [ -z "$ANSWER" ]#while no answer is given, keep asking.do ASK_COUNT=$[ $ASK_COUNT + 1 ]#case $ASK_COUNT in#If user gives no answer in time alloted2)echoecho "Please answer the question."echo;;3)echoecho "One last try...please answer the question."echo;;4)echoecho “Since you refuse to answer the question..."echo "existing program"echo#exit;;esac#echo#if [ -n "$LINE2" ]then #Print 2 LINESecho $LINE1echo -e $LINE2"\c"elseecho -e $LINE1"\c"fi## Allow 60 seconds to answer before time-outread -t 60 ANSWERdone#Do a little variable clean-upunset LINE1unset LINE2#}#End of get_answer function#################function process_answer{#case $ANSWER iny|Y|YES|yes|Yes|yES|yEs|yeS|YEs）# if uswer answers "yes", do nothing.;;*)#If user answers anything but "yes", exit scriptecho echo $EXIT_LINE1    echo $EXIT_LINE2echoexit;;esac##Do a little variable clean-up#unset EXIT_LINE1unset EXIT_LINE2#}#End of process_answer function###################################End  of Function Definitions###################Main Script######################Get name of Uswer Account t check#echo "Step #1 - Determine User Account name to Delete"echoLINE1="Please enter the uswername of the user"LINE2="account you wish to delete from system:"get_answerUSER_ACCOUNT=$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 acccount, $USER_ACCOUNT is not"EXIT_LINE2="the one you wishi the delete, we are leaving the script.."process_answer################################Check that USER_ACCOUNT is really an account on the system#USER_ACCOUNT_RECORD=$(cat /etc/passwd | grep -w $USER_ACCOUNT)if [ $? -eq 1 ]#If the account is not found, exit scriptthen echo echo "Account. $USER_ACCOUNT, not found."echo "Leaving the script.."echoexitfi#echo echo "I found this record:"echo $USER_ACCOUNT_RECORDecho#LINE1="Is this correct user account?[y/n]“get_answer###Call process_answer functions"# if user answers anything bug "yes", exit scrpit#EXIT_LINE1="Because the account, $USER_ACCOUNT is not"EXIT_LINE2="the one you wish to delete, we area leaving the script.."process_answer#####################################Search for any running processes that belong to the User account#echo echo "Step #2-Find process on system belonging to user account"echoecho "$USER_ACCOUNT has the following processes running:"echo#ps -u $USER_ACCOUNT#List user processes running.case $? in1)#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.#unset ANSWERLINE1="Would you like me to kill the process(es)? [y/n]"get_answer#case $ANSWER iny|Y|YES|yes|Yes|yES|yEs|yeS|YEs)#If user answers "yes",kill user account process;echo#Clean-up temp file upon signalstrap "rm $USER_ACCOUNT_Running_Process.rpt" SIGTERM SIGINT SIGQUIT##List user processes runningps -u $USER_ACCOUNT >　$USER_ACCOUNT_Running_Process.rpt#exec < $USER_ACCOUNT_Running_Process.rpt#Make report Std Input#read USER_ACCOUNT_REC#First record will be blankread USER_ACCOUNT_REC#while [ $? -eq 0 ]do#Obtain PIDUSER_PID=$(echo $USER_PROCESS_REC | cut -d " " -f 1)kill -9 $USER_PIDecho "Killed process $USER_PID"read USER_PROCESS_RECdone#echorm $USER_ACCOUNT_Running_Process.rpt#Remove temp report.;;*)#If user answers anything but "yes", do not kill.echoecho "Will not kill the process(es)"echo;;esac;;esac###################################################3#Create a report of all files owned by user account#echo echo "Step #3-Find files on system belonging to user account"echoecho "Creating a reort of all files owned by $USER_ACCOUNT."echoecho "It is recommended that you backup/archive these files."echo "and then do one of two things."echo "1)Delete the files"echo "2)Change the files' ownership to a current user account."echo echo "Please wait. This may take a while..."#REPORT_DATE='date +%y%m%d'REPORT_FILE=$USER_ACCOUNT"_Files_"$REPORT_DATE".rpt"#find / -user $USER_ACCOUNT > $REPORT_FILE 2>/dev/null#echoecho "Report is complete."echo "Name of the report: $REPORT_FILE"echo "Location of report: 'pwd'"echo###################################3#Remove user accountechoecho "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.."process_answer#userdel $USER_ACCOUNT#delete user accountechoecho "User account, #USER_ACCOUNT has been removed"echo

.