| CRON_FILE="/var/spool/cron/root" | |
| BACKUP_FILE="/var/spool/cron/root_backup_$(date +%Y%m%d%H%M%S)" | |
| # 创建crontab的备份 | |
| cp $CRON_FILE $BACKUP_FILE | |
| # 删除以flock开头的行，并覆盖原文件 | |
| grep -vP '^\s*flock' $BACKUP_FILE > $CRON_FILE | |
| echo "Crontab modification completed. Backup is located at $BACKUP_FILE" | |