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 $AFT...
–domains=LIST可以接受的域名–exclude-domains=LIST拒绝的域名 -L,–relative 下载关联链接 –follow-ftp 只下载FTP链接 -H,–span-hosts 可以下载外面的主机 -I,–include-directories=LIST允许的目录 -X,–exclude-directories=LIST 拒绝的目录
/etc/hosts /etc/ethers arp [-vn] [-H 链接层类型] [-i 网络接口] [-D] 网络目标 -v:详细显示 arp 输出信息 -n:不解析主机名 -H:指定链路层类型 -i:指定网络接口 -D:删除指定 IP 的 ARP 缓存 arp命令使用 显示ARP 缓存信息 arp -a ...
Check if remote file exists. HTTP request sent, awaiting response... 404 Not Found Remote file does not exist -- broken link!!! 你可以在以下几种情况下使用 spider 参数: 定时下载之前进行检查 间隔检测网站是否可用 检查网站页面的死链接 实例8:使用 wget –tries 增加重试次数 命令: wget --tries=...
–follow-ftp 只下载FTP链接-H,–span-hosts 可以下载外面的主机-I,–include-directories=LIST 允许的目录-X,–exclude-directories=LIST 拒绝的目录 5、wget -help打印内容 test@test-Vostro-3888-China-HDD-Protection:~$wget-hlep GNU Wget1.20.3,非交互式的网络文件下载工具。
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...