一、总结软件管理相关指令
二、完成find命令的总结
三、总结正则表达式的用法
四、根据课程完成综合实战相关练习
1&2&3&4
五、完成存储管理的命令总结
六、完成LVM的命令总结和课程演示练习
5&6
七、总结linux系统的启动过程
7
八、动手制作一个systemd的unit文件
[Unit]Description=MySQL ServerDocumentation=man:mysqld(8)After=network.target syslog.target[Service]User=mysqlGroup=mysqlType=notifyExecStart=/usr/local/mysql/bin/mysqld --defaults-file=/etc/my.cnfExecStop=/usr/local/mysql/bin/mysqladmin-urootshutdownLimitNOFILE=65535Restart=on-failureRestartSec=3[Install]WantedBy=multi-user.target九、完成每日凌晨1点定时打包/var/log/message文件的定时任务
# 创建备份目录mkdir/backup# Rocky 最小安装安装 tar gzipdnfinstall-ytargzip# 创建备份脚本cat>/backup/timer_logs_message_backup.sh<<'EOF' #!/bin/bash BACKUP_DIR=/backup BACKUP_FILE=message-timer-$(date +%F).tar.gz # 检查目录,不存在则创建 if [ ! -d $BACKUP_DIR ];then mkdir $BACKUP_DIR fi # 备份 message 日志 /usr/bin/tar czf $BACKUP_DIR/$BACKUP_FILE /var/log/message 2>/dev/null # 清除超过一周的备份文件 find $BACKUP_DIR -name *.tar.gz -mtime +7 | xargs -I {} rm -rf {} EOF# 添加执行权限chmod+x /backup/timer_logs_message_backup.sh# 测试脚本执行/backup/timer_logs_message_backup.sh ll /backup/# 创建 Service 单元,Type=oneshot 表示执行一次退出cat>/etc/systemd/system/backup_logs_message.service<<'EOF' [Unit] Description=Log Backup Service (Timer) [Service] Type=oneshot ExecStart=/backup/timer_logs_message_backup.sh User=root EOF# 创建 Timer 单元,与 Service 单元同名,Persistent=true 表示错过执行补偿,例如指定时间系统关机,开机后立即补执行cat>/etc/systemd/system/backup_logs_message.timer<<'EOF' [Unit] Description=Log Backup Timer [Timer] OnCalendar=*-*-* 01:00:00 Persistent=true [Install] WantedBy=timers.target EOF# 启动 Timersystemctl daemon-reload systemctlenable--nowbackup_logs_message.timer# 验证# 查看所有 Timersystemctl list-timers# 手动触发执行,需要确保 SELinux 关闭systemctl start backup_logs_message.servicels-l/backup# 查看日志journalctl-ubackup_logs_message.service-n20十、完成每半小时自动创建一个文件并且删除完成日志记录的定时任务
# 创建目录mkdir/var/log/touch_logs# 创建脚本cat>/var/log/touch_logs/timer_touch_flag.sh<<'EOF' #!/bin/bash TOUCH_DIR=/var/log/touch_logs TOUCH_FILE=$(date +%Y%m%d_%H%M%S).flag # 检查目录,不存在则创建 if [ ! -d $BACKUP_DIR ];then mkdir $BACKUP_DIR fi # 创建一个文件 /usr/bin/touch $TOUCH_DIR/$TOUCH_FILE 2>/dev/null # 清除超过一周的文件 find $TOUCH_DIR -name "*.flag" -mtime +7 | xargs -I {} rm -rf {} EOF# 添加执行权限chmod+x /var/log/touch_logs/timer_touch_flag.sh# 测试脚本执行/var/log/touch_logs/timer_touch_flag.sh ll /var/log/touch_logs# 创建 Service 单元,Type=oneshot 表示执行一次退出cat>/etc/systemd/system/touch_flag.service<<'EOF' [Unit] Description=Log Backup Service (Timer) [Service] Type=oneshot ExecStart=/var/log/touch_logs/timer_touch_flag.sh User=root EOF# 创建 Timer 单元,与 Service 单元同名,Persistent=true 表示错过执行补偿,例如指定时间系统关机,开机后立即补执行cat>/etc/systemd/system/touch_flag.timer<<'EOF' [Unit] Description=Log Backup Timer [Timer] OnCalendar=*-*-* *:00,30:00 Persistent=true [Install] WantedBy=timers.target EOF# 启动 Timersystemctl daemon-reload systemctlenable--nowtouch_flag.timer# 验证# 查看所有 Timersystemctl list-timers# 手动触发执行,需要确保 SELinux 关闭systemctl start touch_flag.servicels-l/var/log/touch_logs# 查看日志journalctl-utouch_flag.service-n20
