shell安装samba服务

编写一个脚本，全自动安装samba服务，共享的目录。由用户输入，
脚本根据用户的输入自动判断。然后写到samba配置文件，访问samba统一用户为:root

密码为:123456，脚本全自动启动服务，请告诉用户samba服务是否运行成功。

!/bin/bash

#write by lijun
#Date 2014-07-16
#====================================================
#the present path
#====================================================
PWDDIR=`pwd`
#=====================================================
#function check error
#=====================================================
function check_err(){
if [ $? -eq 0 ]
then
    echo "`basename $0` ok!!!">$PWDDIR/ok.log
else
    echo "`basename $0` failed...">$PWDDIR/error.log
fi
}
#======================================================
#1.function check samba install
#======================================================
function check_smb_install(){
rpm -q samba
if [ $? -eq 0 ]
then
    echo
    echo "You have already installed samba!"
    echo
else
    yum install samba -y
check_err
fi
}
#====================================================
#selinux and iptables
#====================================================
function close(){
/etc/init.d/iptables stop
setenforce 0
echo "iptables is stopped!"
echo "selinux has set for 0!"
}
#=====================================================
#2.modify the configration in service
#=====================================================
function modify_conf(){
echo
read -p "Would you like to creat a directory?[yes/no]:"  a
echo
if [ $a == "yes"  -o  $a == "YES" ]
then
    read -p "Please input the directory name only under the '/' like /d_name:" name

    mkdir -p $name

    chmod 777 $name  -R

    sed -i '101s/share/user/g' /etc/samba/smb.conf
    echo "
          [test `echo $name|awk -F/ '{print $NF}'`]
          path = $name
          comment = share `echo $name|awk -F/ '{print $NF}'`
          valid users = root
          writeable = yes
          browseable = yes
          public = yes">> /etc/samba/smb.conf
check_err
    echo
    echo "Please set password for root"
    smbpasswd -a root
    echo
    read -p "Restart the service??[yes/no]:" b
    echo
if [ $b == "yes"  -o  $b == "YES" ]
then
    service smb restart
else
    exit
fi
    echo
    echo "OK...Congratulations!!!"
    echo
    echo "Now you can login the system as user of 'root'"
  echo "password is '123456'"
    echo
else
    exit
fi
}
check_smb_install
modify_conf
close