hosts文件是Linux系统上一个负责ip地址与域名快速解析的文件,以ascii格式保存在/etc/目录下。hosts文件包含了ip地址与主机名之间的映射,还包括主机的别名。在没有域名解析服务器的情况下,系统上的所有网络程序都通过查询该文件来解析对应于某个主机名的ip地址,否则就需要使用dns服务程序来解决。通过可以将常用的域名和...
echo "$FILE does not exist" fi [ ! -f /etc/docker ] && echo "$FILE does not exist" 04、检查是否存在多个文件 不使用复杂的嵌套if/else构造,您可以使用-a(或带[[的&&预算符)来测试是否存在多个文件,示例如下: if [ -f /etc/resolv.conf -a -f /etc/hosts ]; then echo "Both files exis...
-f "$1" ] ; then echo "$1 does not seem to be a file" exit 2 fi } function clean_file { is_file "$1" BEFORE=$(wc -l "$1") echo "The file $1 starts with $BEFORE" sed -i.bak '/^\s*#/d;/^$/d' "$1" AFTER=$(wc -l "$1") echo "The file $1 is now $AFT...
–exclude-domains=LIST 拒绝的域名-L,–relative 下载关联链接 –follow-ftp 只下载FTP链接-H,–span-hosts 可以下载外面的主机-I,–include-directories=LIST 允许的目录-X,–exclude-directories=LIST 拒绝的目录 5、wget -help打印内容 test@test-Vostro-3888-China-HDD-Protection:~$wget-hlep GNU Wget1.20....
/etc/hosts /etc/ethers arp [-vn] [-H 链接层类型] [-i 网络接口] [-D] 网络目标 -v:详细显示 arp 输出信息 -n:不解析主机名 -H:指定链路层类型 -i:指定网络接口 -D:删除指定 IP 的 ARP 缓存 arp命令使用 显示ARP 缓存信息 arp -a ...
Linuxwget是一个下载文件的工具,它用在命令行下。对于Linux用户是必不可少的工具,尤其对于网络管理员,经常要下载一些软件或从远程服务器恢复备份到本地服务器。如果我们使用虚拟主机,处理这样的事务我们只能先从远程服务器下载到我们电脑磁盘,然后再用ftp工具上传到服务器。这样既浪费时间又浪费精力,那不没办法的事。
To run NVMe commands on Linux hosts, you must install the NVMe-CLI tool. Run the following command to check whether the tool has been installed: [root@localhost ~]# rpm -qa | grep nvme nvme-cli-1.6-2.el8.x86_64 If no result is returned, the tool is not installed. You can use ...
To run NVMe commands on Linux hosts, you must install the NVMe-CLI tool. Run the following command to check whether the tool has been installed: [root@localhost ~]# rpm -qa | grep nvme nvme-cli-1.6-2.el8.x86_64 If no result is returned, the tool is not installed. You can use ...
- name: Install and Onboard MDE hosts: servers tasks: - name: Create a directory if it does not exist ansible.builtin.file: path: /tmp/mde_install state: directory mode: '0755' - name: Copy Onboarding script ansible.builtin.copy: src: "{{ onboarding_json }}" dest: /tmp/mde_in...
Spider mode enabled. Check if remote file exists. HTTP request sent, awaiting response... 404 Not Found Remote file does not exist -- broken link!!! 你可以在以下几种情况下使用 spider 参数: 定时下载之前进行检查 间隔检测网站是否可用