linux设置定时任务
linux-dash
A beautiful web dashboard for Linux
项目地址:https://gitcode.com/gh_mirrors/li/linux-dash
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1、打开定时任务文件夹
[root@localhost cron]# cd /var/spool/cron
[root@localhost cron]#
2、查看定时任务
[root@localhost cron]# crontab -l
0 19 17 12 * /emqx/test0.sh
0 19 17 12 * /emqx/test1.sh
0 19 17 12 * /emqx/test2.sh
0 19 17 12 * /emqx/test3.sh
0 19 17 12 * /emqx/test4.sh
0 19 17 12 * /emqx/test5.sh
0 19 17 12 * /emqx/test6.sh
0 19 17 12 * /emqx/test7.sh
0 19 17 12 * /emqx/test8.sh
0 19 17 12 * /emqx/test9.sh
3、写脚本
touch test0.sh
chmod 777 test0.sh
vim test0.sh
## 这里是测试emqx的数据
sysctl -w net.ipv4.ip_local_port_range="500 65535"
echo 1000000 > /proc/sys/fs/nr_open
ulimit -n 100000
/data/emqtt-bench/emqtt_bench conn -h 192.168.1.1 -p 1883 -c 50000 --ifaddr 192.168.1.2
4、执行定时任务
crontab -e
0 19 17 12 * /emqx/test0.sh
5 crontab文件格式:
* * * * * command
minute hour day month week command
分 时 天 月 星期 命令
6、删除定时任务
crontab -r
7、查看、设置开机自启
systemctl list-unit-files crond
systemctl enable crond
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A beautiful web dashboard for Linux
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