# Edit this file to introduce tasks to be run by cron. # # Each task to run has to be defined through a single line # indicating with different fields when the task will be run # and what command to run for the task # # To define the time you can provide concrete values for # minute (m), hour (h), day of month (dom), month (mon), # and day of week (dow) or use '*' in these fields (for 'any').# # Notice that tasks will be started based on the cron's system # daemon's notion of time and timezones. # # Output of the crontab jobs (including errors) is sent through # email to the user the crontab file belongs to (unless redirected). # # For example, you can run a backup of all your user accounts # at 5 a.m every week with: # 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/ # # # For more information see the manual pages of crontab(5) and cron(8) # #root@kali:/# crontab -u root /root/batchaccess # #root@kali:/# siege -i -c 300 -r 20 -t 2H -b -v -f /root/blog.txt #root@kali:/# leafpad /etc/siege/siegerc #root@kali:/# siege -C #root@kali:/# locate siege # # #root@kali:~# crontab -u root /root/batchaccess#使用root用户定时执行 /root/batchaccess 这个文件 #root@kali:~# crontab -u root -l# 列出 root用户的定时任务 #root@kali:~# crontab -u root -r# 清空 root用户的定时任务 #root@kali:~# crontab -u root -i -r # 在清空 root用户的定时任务之前,需要用户手动确认是否清空 # #root@kali:/# locate siege #root@kali:/# leafpad /var/log/siege.log #root@kali:/# cat /var/log/syslog |grep "siege" #root@kali:/# rm /var/log/siege.log # #root@kali:~# /etc/init.d/cron restart #root@kali:~# service cron restart # */2 * * * * siege -i -c 100 -t 20S -v -f /root/blog.txt