有时候有大批量的服务器普通用户需要做删除账号处理，一个个手动删也不太现实，这时候使用shell脚本来处理就方便多了，只需运行脚本输入需要删除的用户名就可以了

下面是shell脚本内容

#!/bin/bash

function get_answer {

#

unset ANSWER

ASK_COUNT=0

#

while [ -z "$ANSWER" ] #当没有人回答时，继续问

do

ASK_COUNT=$[ $ASK_COUNT + 1 ]

#

case $ASK_COUNT in #如果用户在分配的时间内没有回答

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 #打印2行

echo $LINE1

echo -e $LINE2" \c"

else #打印1行

echo -e $LINE1" \c"

fi

#

# 在超时前等待60秒回答

read -t 60 ANSWER

done

# 做一点清理

unset LINE1

unset LINE2

#

} #get_answer 函数结束

#

#####################################################

function process_answer {

#

case $ANSWER in

y|Y|YES|yes|Yes|yEs|yeS|YEs|yES )

# 如果用户回答yes，则不执行任何操作

;;

*)

# 如果用户没有回答yes，则退出脚本

echo

echo $EXIT_LINE1

echo $EXIT_LINE2

echo

exit

;;

esac

#

# 做一点清理

#

unset EXIT_LINE1

unset EXIT_LINE2

#

} # process_answer 函数结束

#

##############################################

# 函数定义结束

#

############# 主脚本 ####################

# 获取要检查的用户帐户的名称

#

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

#

# 与脚本用户重复检查这是正确的用户帐户

#

LINE1="Is $USER_ACCOUNT the user account "

LINE2="you wish to delete from the system? [y/n]"

get_answer

#

# 响应process_answer 函数

# 如果用户没有回答yes，则退出脚本

#

EXIT_LINE1="Because the account, $USER_ACCOUNT, is not "

EXIT_LINE2="the one you wish to delete, we are leaving the script..."

process_answer

#

################################################################

# 检查用户帐户是否确实是系统上的帐户

#

USER_ACCOUNT_RECORD=$(cat /etc/passwd | grep -w $USER_ACCOUNT)

#

if [ $? -eq 1 ] # 如果找不到帐户，请退出脚本

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

#

#

# 响应 process_answer 函数:

# 如果用户没有回答yes，则退出脚本

#

EXIT_LINE1="Because the account, $USER_ACCOUNT, is not "

EXIT_LINE2="the one you wish to delete, we are leaving the script..."

process_answer

#

##################################################################

# 搜索属于该用户帐户的所有正在运行的进程

#

echo

echo "Step #2 - Find process on system belonging to user account"

echo

#

ps -u $USER_ACCOUNT >/dev/null # 用户进程正在运行吗？

#

case $? in

1) # 没有为此用户帐户运行的进程

#

echo "当前没有此帐户的进程正在运行。"

echo

;;

0) # 为此用户帐户运行的进程。

# 询问脚本用户是否希望我们终止进程。

#

echo "$USER_ACCOUNT has the following processes running: "

echo

ps -u $USER_ACCOUNT

#

LINE1="想终止进程吗？ [y/n]"

get_answer

#

case $ANSWER in

y|Y|YES|yes|Yes|yEs|yeS|YEs|yES ) # 如果用户回答yes,

# 终止用户帐户进程。

#

echo

echo "进程终止..."

#

# 在变量中列出运行代码的用户进程, COMMAND_1

COMMAND_1="ps -u $USER_ACCOUNT --no-heading"

#

# 在变量中创建终止进程的命令, COMMAND_3

COMMAND_3="xargs -d \\n /usr/bin/sudo /bin/kill -9"

#

#通过管道命令一起终止进程

$COMMAND_1 | gawk '{print $1}' | $COMMAND_3

#

echo

echo "Process(es) killed."

;;

*) # 如果用户回答yes以外的任何问题，不要杀死。

echo

echo "Will not kill the process(es)"

echo

;;

esac

;;

esac

#################################################################

# 创建用户帐户拥有的所有文件的报告

#

echo

echo "Step #3 - 查找属于用户帐户的系统上的文件"

echo

echo "创建所拥有的所有文件的报告 $USER_ACCOUNT."

echo

echo "建议您备份或存档这些文件,"

echo "然后做两件事中的一件:"

echo " 1) 删除文件"

echo " 2) 将文件的所有权更改为当前用户帐户."

echo

echo "请稍等。这可能需要一段时间..."

#

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 "报告已完成."

echo "报告名称: $REPORT_FILE"

echo "获取路径: $(pwd)"

echo

####################################

# Remove User Account

echo

echo "Step #4 - 删除用户帐户"

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="不想删除用户帐户,"

EXIT_LINE2="$USER_ACCOUNT 此时，退出脚本..."

process_answer

#

userdel $USER_ACCOUNT #删除用户帐户

echo

echo "User account, $USER_ACCOUNT, has been removed"

echo

#

exit

来源：智一面运维小编