vsftp创建虚拟用户脚本

#!/bin/bash
###########################################################
# coding: utf8
# Filename: vsftp_adduser.sh
# Author: lsy
# Email: [e-mail]
# Last modified: 2014-05-16
# Description:
#  this script is used for vsftp add virtual user.
###########################################################
if [ $(id -u) != "0" ]; then
    echo "Error: You must be use root to run this script!"
    exit 1
fi
clear
vuser_dir=/etc/vsftpd/vusers
local_user=
vir_user=
vir_pwd=
vir_dir=
#判断vsftpd是否安装
rpm -qa|grep vsftp
if [[ $? -ne 0 ]]; then
  yum install vsftpd db4-utils -y
else
  echo "vsftpd installed."
fi
#增加ftp虚拟用户函数
function add_user() {
read -p "please input mapped local user(default www user,entry): " local_user
local_user=${local_user:=www}
while true;do
  read -p "please input ftp username: " vir_user
  if [[ $vir_user = "" ]]; then
    echo "Error! ftp username is null."
  else
    break
  fi
done
while true;do
  read -p "please input ftp password: " vir_pwd
  if [[ $vir_pwd = "" ]]; then
    echo "Error! ftp password is null."
  else
    break
  fi
done
while true;do
  read -p "please input ftp dir: " vir_dir
  if [[ -d $vir_dir ]]; then
    break
  else
    echo "the directry is not exist!"
  fi
done
}
#创建ftp虚拟用户函数
function create_user() {
if [[ ! -d "$vuser_dir" ]]; then
  mkdir $vuser_dir
fi
cat >>/etc/vsftpd/vsftpd_login.txt <<EOF
$vir_user
$vir_pwd
EOF
cat >$vuser_dir/$vir_user <<EOF
guest_enable=YES
guest_username=$local_user
local_root=$vir_dir
write_enable=YES
EOF
db_load -T -t hash -f /etc/vsftpd/vsftpd_login.txt /etc/vsftpd/vsftpd_login.db
/etc/init.d/vsftpd restart
}
#确认ftp虚拟用户信息函数
function user_info() {
add_user
echo "========================================"
echo "local user is: $local_user"
echo "local ftp user is: $vir_user"
echo "local ftp password is: $vir_pwd"
echo "local ftp directry is: $vir_dir"
echo "========================================"
while true;do
  read -p "Are you sure the ftp information? (y or n): " info
  case $info in
    Y|y)
      create_user
      break
      ;;
    N|n)
      user_info
      break
      ;;
    *)
      echo ""
  esac
done
}
user_info

另附vsftp虚拟用户配置方法http://3802230.blog.51cto.com/3792230/1412311