下没有文件和其他 //目录了，就把 dir1 也删除了 #rm -r xxx //删除非空目录，目录里的文件也会被删除，删除前会有提示， //输入 y 表示确定删除，n 表示不删除 27 #rm -rf xxx //强制删除 xxx 目录及其包含的所有文件，不提示 #du -sh /root //显示/root 目录使用的容量（占用的大小），默认以 KB 为单位 //使用 h 参数后表示以方便阅读的单位显示 at -d 加任务号 ②crond 服务 用户可以使用 crontab 命令安排自己的 crond 周期性任务 95 crontab 任务安排命令格式： 例： 5 0 * * * rm -rf ~/temp/* 字段：1 2 3 4 5 6 字段说明 1: 表示一小时中的哪一分钟（0～59） 2：表示一天中的哪一小时（0～23）*星号表示不限具体的小时，即每个小时 3：表示一月中的哪 都表示周日，*星号表示不限星期几，即每天 6：表示任务具体的命令（rm -rf ~/tmp/*） 本例中的含义：在每天的 0 时 5 分执行 rm -rf ~/temp/*，即清空用户的临时文件 创建用户自己的周期性任务 #crontab -e //输入此命令后，以 Vi 工具进行编辑任务格式 比如： 15 1 * * * rm -rf ~/temp/* 一行表示一个任务，可以写多行 然后保存退出即可。

sudo rm -f /usr/local/bin/zabbix_get sudo rm -f /usr/local/bin/zabbix_sender sudo rm -rf /usr/local/etc/zabbix sudo rm -rf /var/log/zabbix Forget that Zabbix agent has been installed: sudo pkgutil --forget configuration package To proceed with the update your current repository package has to be uninstalled. # rm -Rf /etc/apt/sources.list.d/zabbix.list Then install the new repository configuration package. On Debian parameters are supported for the Action log widget. 918 Parameter type name value Refresh interval 0 rf_rate 0 - No refresh; 10 - 10 seconds; 30 - 30 seconds; 60 - (default) 1 minute; 120 - 2 minutes;

sudo rm -f /usr/local/bin/zabbix_get sudo rm -f /usr/local/bin/zabbix_sender sudo rm -rf /usr/local/etc/zabbix sudo rm -rf /var/log/zabbix Forget that Zabbix agent has been installed: sudo pkgutil --forget configuration package To proceed with the update your current repository package has to be uninstalled. rm -Rf /etc/apt/sources.list.d/zabbix.list Then install the new repository configuration package. On Debian parameters are supported for the Action log widget. Parameter type name value Refresh interval 0 rf_rate 0 - No refresh; 10 - 10 seconds; 30 - 30 seconds; 60 - (default) 1 minute; 120 - 2 minutes;

-f /usr/local/bin/zabbix_get sudo rm -f /usr/local/bin/zabbix_sender 81 sudo rm -rf /usr/local/etc/zabbix sudo rm -rf /var/log/zabbix Forget that Zabbix agent has been installed: sudo pkgutil --forget configuration package To proceed with the update your current repository package has to be uninstalled. rm -Rf /etc/apt/sources.list.d/zabbix.list Then install the new repository configuration package. On Debian parameters are supported for the Action log widget. Parameter type name value Refresh in- ter- val 0 rf_rate 0 - No refresh; 10 - 10 seconds; 30 - 30 seconds; 60 - (default) 1 minute; 120 - 2 minutes;

-f /usr/local/bin/zabbix_get sudo rm -f /usr/local/bin/zabbix_sender 86 sudo rm -rf /usr/local/etc/zabbix sudo rm -rf /var/log/zabbix Forget that Zabbix agent has been installed: sudo pkgutil --forget configuration package To proceed with the update your current repository package has to be uninstalled. # rm -Rf /etc/apt/sources.list.d/zabbix.list Then install the new repository configuration package. On Debian parameters are supported for the Action log widget. 936 Parameter type name value Refresh interval 0 rf_rate 0 - No refresh; 10 - 10 seconds; 30 - 30 seconds; 60 - (default) 1 minute; 120 - 2 minutes;

扩起，那么会导致 严重的问题： 1. # 为方便演示，删除全部别名 2. unalias -a 3. # 没有用单引号扩起 4. alias rm=rm -rf 5. # 执行命令后报错 bash: alias: -rf: not found 知识点 错误用法 alias 定义或显示别名 - 38 - 本文档使用 书栈网 · BookStack.CN 构建 6. # 这时使用alias查看rm的别名时返回 org/axel/axel-2.4-1.el5.rf.i386.rpm 2. rpm -ivh axel-2.4-1.el5.rf.i386.rpm 64位CentOS执行下面命令： 1. wget -c http://pkgs.repoforge.org/axel/axel-2.4-1.el5.rf.x86_64.rpm 2. rpm -ivh axel-2.4-1.el5.rf.x86_64.rpm Debian/Ubuntu安装Axel： /home/windsome/EMMA3PF-KernelSource-20080626/install_pos/lib -rf 6. rm /home/windsome/EMMA3PF-KernelSource-20080626/install_pos/boot/* -rf 7. cd 8. make 9. make modules_install 10.

prompt. You can chain the flags, so instead of rm -r -f you can as well type rm -rf. But, always double check before you use rm -rf command, if you by mistake give this command in your home directory, or any there. So, please be careful and read twice before pressing enter key. [babai@kdas-laptop ~]$ rm -rf dir1/dir2/dir3 [babai@kdas-laptop ~]$ ls dir1/ dir1/dir2/ dir1/: dir2 dir1/dir2/: Copying a file

sudo rm -f /usr/local/bin/zabbix_get sudo rm -f /usr/local/bin/zabbix_sender sudo rm -rf /usr/local/etc/zabbix sudo rm -rf /var/log/zabbix 移除 Zabbix agent 安装包： sudo pkgutil --forget com.zabbix.pkg.ZabbixAgent /opt/zabbix-backup/ # cp -R /usr/share/doc/zabbix-* /opt/zabbix-backup/ ##### 4 更新存储配置包 要继续更新，必须卸载当前的存储库包。 # rm -Rf /etc/apt/sources.list.d/zabbix.list 然后安装新的存储库配置包。 在 Debian 11 运行: # wget https://repo.zabbix.com/zabbix/6 parameters are supported for the Action log widget. Parameter type name value Refresh interval 0 rf_rate 0 - No refresh; 10 - 10 seconds; 30 - 30 seconds; 60 - (default) 1 minute; 120 - 2 minutes;

them, we'll use the more generic rm command which deletes files and folders, using the -rf options: rm -rf fruits cars Be careful as this command does not ask for confirmation and it will immediately

them, we'll use the more generic rm command which deletes files and folders, using the -rf options: rm -rf fruits cars Be careful as this command does not ask for confirmation and it will immediately