vsftpd 自动安装脚本

自己第一次写的青涩脚本 

#!/bin/bash
set -x #这个我调试脚本用的，没其他含义，可以删除
allow=YES
deny=NO
Sname=vsftpd
VFconf="/etc/vsftpd/vsftpd.conf"
VFstart="/etc/init.d/vsftpd"
VUser="/etc/vsftpd/vuser"
VUCdirectory="/etc/vsftpd/vuconf"
VFpam="/etc/pam.d/vsftpdd"
VFDirectory="/var/www/html"
DB4=db4
DB4UTILS="db4-utils"
DB4DEVEL="db4-devel"
sys_tem="/lib64"
http=apache
#----------主配置文件--------------
MAIN_CONFIG()
{
        if [ -d $sys_tem ];then
           echo "you system is 64bit"
           systems=$sys_tem
        else
           echo "you system is 32bit"
           systems=/lib
    fi
#     touch $VFpam
     sed -i 's/anonymous_enable=YES/anonymous_enable=NO/g' $VFconf
     sed -i 's/#chown_uploads=YES/chown_uploads=NO/g' $VFconf
     sed -i 's/#xferlog_file/xferlog_file/g' $VFconf
     sed -i 's/#async_abor_enable=YES/async_abor_enable=YES/g' $VFconf
     sed -i 's/#ascii_upload_enable=YES/ascii_upload_enable=YES/g' $VFconf
     sed -i 's/#ascii_download_enable=YES/ascii_download_enable=YES/g' $VFconf
     sed -i 's/#chroot_local_user=YES/chroot_local_user=YES/g' $VFconf
     sed -i 's/pam_service_name=vsftpd/pam_service_name=vsftpdd/g' $VFconf
         {
                echo "guest_enable=$allow"
                echo "guest_username=$http"
                echo "user_config_dir=$VUCdirectory"
                echo "virtual_use_local_privs=$allow"
          } >> $VFconf
     touch $VFpam
         {
          echo "auth sufficient $systems/security/pam_userdb.so db=$VUser"
          echo "account sufficient $systems/security/pam_userdb.so db=$VUser"
          } > $VFpam
}
#------------用户配置-----------------------
USER_CONFIG ()
{
Uname=$1
userhome="local_root="
userworld="anon_world_readable_only="
userupload="anon_upload_enable="
usermkdir="anon_mkdir_write_enable="
userothen="anon_mkdir_write_enable="
userwrite="write_enable="
echo "现在开始配置用户....."
if [ -d $VUCdirectory ];then
echo "............"
else
mkdir $VUCdirectory
fi

echo "你需要配置的用户是："
echo "$Uname"
touch "$VUCdirectory/$Uname"  && echo "用户配置文件创建成功.................................."
 {
 echo "$userhome$VFDirectory"
 echo "$userwrite$allow"
 echo "$userworld$deny"
 echo "$userupload$allow"
 echo "$usermkdir$allow"
 echo "$userothen$allow"
  } > $VUCdirectory/$Uname
chown -R $http:$http $VFDirectory
chmod -R 755 $VFDirectory
}
#----------------增加用户---------------------
ADD_USER()
{
echo "start add user"
rpm -q $DB4
 if [ $? -eq 0 ];then
   echo "............."
 else
    echo "need download $DB4..."
    yum install -y $DB4
fi
rpm -q $DB4UTILS
 if [ $? -eq 0 ];then
   echo "............."
 else
    echo "need download $DB4UTILS..."
    yum install -y $DB4UTILS
fi
rpm -q $DB4DEVEL
if [ $? -eq 0 ];then
   echo "------------"
else
    echo "need download $DB4DEVEL..."
    yum install -y $DB4DEVEL
fi
if [ -f $VUser ];then
        echo "..................."
else
         touch $VUser
fi
    username=$1
    userpasswd=$2
{
echo "$username"
echo "$userpasswd"
} >> $VUser
db_load -T -t hash -f  $VUser $VUser.db
rm -rf  $VUser
}
#-----------------安装服务---------------------
INSTALL_SERVER()
{
 rpm -q $Sname
if [ $? -eq 0 ];then
echo "--------------------"
else
yum install -y $Sname
fi
echo -n "add user? "
echo "y is add"
echo "n and q is quit"
echo -n "Please select:"
read stall
   case $stall in
    y|Y)
         echo "ENTER USERNAME"
         read name1
         echo "ENTER PASSWD"
         read passwd1
         ADD_USER $name1 $passwd1
         USER_CONFIG $name1
         MAIN_CONFIG
           ;;
    n|q|N|Q)
         echo "EXIT。"
         exit 0
          ;;
    esac
}
#------------------------------------------------
echo "start install $Sname:"
INSTALL_SERVER
$VFstart restart
exit 0