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712脚本作业

2020年07月15日  | 移动技术网IT编程  | 我要评论

1.判断/tmp/run目录是否存在，如果不存在就建立，如果存在就删除目录里所有文件

#!/bin/bash
[ -d /tmp/run ] && {
        echo "/tmp/run exists"
        rm -fr /tmp/run/*
        echo "the dir is clear"
}||{    
        echo "/tmp/run not exists"
        mkdir -p /tmp/run
        echo "/tmp/run now exists"
        exit
}

 

2.输入一个路径，判断路径是否存在，而且输出是文件还是目录，如果是链接文件，还得输出是有效的连接还是无效的连接 

#!/bin/bash
read -p "please input path: " path
[ -e $path ] && {
        echo "the path exists" 
            [ -d $path ]&& {
            echo "the path is dir"
            exit
        }
            [ -L $path ]&& {
            echo "the path is link"
            exit
        }
            [ -f $path ]&& {
            echo "the path is common file"
            exit
        }
}||{
        echo "the path not exists"
        exit
}

 

3.交互模式要求输入一个ip，然后脚本判断这个IP对应的主机是否能ping通，输出结果类似于： Server 10.1.1.20 is Down! 最后要求把结果邮件到本地管理员root@localhost mail01@localhost 

#!/bin/bash
read -p "please input an ip:" ip

ping -c1 $ip &> /dev/null
if [ $? -eq 0 ]; then
        echo "$ip can ping"
        echo "server $ip can ping" | mail -s root@localhost mail01@localhost
else
        echo "$ip cannot ping"
        echo "server $ip cannot ping" | mail -s root@localhost mail01@localhost
fi

 

4.判断用户输入的字符串，如果是"hello",则显示"world"；如果是"world", 则显示"hello"。

而脚本没有参数或者参数错误时，屏幕上输出 “usage:please input hello or world”

#!/bin/bash
read -p "please input a string: " string
case $string in
        hello)
                echo "world"
                ;;
        world)
                echo "hello"
                ;;
        *)
                echo “usage:please input hello or world”
                ;;
esac

 

5.编辑一个脚本，实现自动搭建samba服务（未完善）

#!/bin/bash
echo "1.判断网络是否畅通"
ping -c1 172.25.254.20 &>/dev/null
      if [ $? -eq 0 ];then
           echo "the network is ok"
      else
           echo "Error:the network is not working"
           exit 1
      fi


echo "2.关闭selinux和firewalld"
setenforce 0 &>/dev/null
     if [ $? -eq 0 ];then
             echo "selinux is disabled"
     fi
systemctl stop firewalld &>/dev/null
     if [ $? -eq 0 ];then
             echo "firewalld is stoped"
     fi

echo "3.查看软件是否安装"
rpm -q samba-common &>/dev/null
     if [ $? -eq 0 ];then
             echo "samba-common is installed"
     else
             echo "samba-common is not installed"
             dnf install samba-common -y
             rpm -q samba-common &>/dev/null
                  if [ $? -eq 0 ];then
                       echo "samba-common is now installed"
                  else
                       echo "samba-common installed failed"
                       exit 1
                  fi
     fi


rpm -q samba &>/dev/null
     if [ $? -eq 0 ];then
             echo "samba is installed"
     else
             echo "samba is not installed"
             dnf install samba -y
             rpm -q samba &>/dev/null
                  if [ $? -eq 0 ];then
                       echo "samba is now installed"
                  else
                       echo "samba installed failed"
                       exit 1
                  fi
     fi


rpm -q samba-client &>/dev/null
     if [ $? -eq 0 ];then
             echo "samba-client is installed"
     else
             echo "samba-client is not installed"
             dnf install samba-client -y
             rpm -q samba-client &>/dev/null
                  if [ $? -eq 0 ];then
                       echo "samba-client is now installed"
                  else
                       echo "samba-client installed failed"
                       exit 1
                  fi
     fi

echo "4.启动smb服务"
systemctl status smb.service | grep active &>/dev/null
if [ $? -eq 0 ];then
        systemctl restart smb
        echo "smb.service restart success"
else
        systemctl enable --now smb
fi


echo "5.添加用户和共享路径"
read -p "please input a user: " user
read -p "please input a path: " path

useradd $user
mkdir -p $path

 

本文地址：https://blog.csdn.net/weixin_46833747/article/details/107321546

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