crontab

Restart pm2 app every 12h with cron

由 南笙酒味 提交于 2020-01-13 08:19:28
问题 Tried this, but it doesn't work: SHELL=/bin/bash PATH=/usr/lib/node_modules/pm2/bin * 0,12 * * * pm2 restart all What am I doing wrong? 回答1: Edit cron with crontab -e and add the following: 0 */12 * * * /usr/bin/node /usr/bin/pm2 restart all For the schedule, use 0 */12 * * * for every 12 hours, or 0 0,12 * * * for 0:00 and 12:00 specifically. (Your schedule, * 0,12 * * * , would trigger every minute of hour 0 and hour 12, 0:00, 0:01, 0:02...) For the command, as fedorqui mentioned, use the

The script runs from command line but crontab fails

由 余生长醉 提交于 2020-01-11 11:32:16
问题 I'm still learning Bash and I'm having a problem with my script. I want to filter some calls with this script that is analyzing a call log, every 2 minutes as cronjob. The problem is that I can run it manually but it fails when run automatically from cron. I don't know why. It shouts something about permissions, so I kinda patched the script, so if it seems dirty I'm sorry. #!/bin/bash YESTERDAY=$((`date +'%s'`-86400)) AYER=`date -d "1970-01-01 $YESTERDAY sec" +"%Y%m%d"` FECHA=`date +"%Y%m%d"

How to schedule an R Script Cronjob in a linux server? [closed]

由 一曲冷凌霜 提交于 2020-01-11 02:52:27
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I am trying to schedule a cronjob to execute an R Script in a linux server. I have achieved to type the commands in the server manually and it works. To do so i have to type the following commands: root@debian:~# cd /home/script2 root@debian:/home/script2# Rscript scriptSecos.R How can i specify a cronjob that

How to schedule an R Script Cronjob in a linux server? [closed]

由 ◇◆丶佛笑我妖孽 提交于 2020-01-11 02:52:09
问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 4 years ago . I am trying to schedule a cronjob to execute an R Script in a linux server. I have achieved to type the commands in the server manually and it works. To do so i have to type the following commands: root@debian:~# cd /home/script2 root@debian:/home/script2# Rscript scriptSecos.R How can i specify a cronjob that

php队列的实现思路和详细过程

由 你。 提交于 2020-01-10 13:49:51
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> 一、队列使用场景：为什么需要队列 在web开发中，我们经常会遇到需要处理批量任务的时候，这些批量任务可能是用户提交的，也可能是当系统被某个事件触发时需要进行批量处理的，面对这样的 任务，如果是用户提交的批量任务，初级程序员只能让用户触发提交动作后，等待服务器处理完毕，并且将结果返回到浏览器，期间用户不能关掉浏览器窗口，如果 数据比较大，或者处理速度比较慢，那用户体验将会因此受到直接影响。但是当我们使用某讯或者某浪的邮箱时，点击群发邮件之后，只需等待很短的时间，浏览器 提示提交成功，正在发送之类的信息时，用户就可以关掉浏览器，稍后，收件地址栏里的邮箱将陆续收到该群发邮件，再比如群发定时邮件，以及当商城系统中有客 户下单，客户，客服，仓库等相关人员收到订单邮件信息。诸如此类，队列的应用范围是如此之广。 二 :普通工程师的解决方案和架构师的解决方案 方案1：建表存邮件，消息等，用定时程序取出发送。 方案2：抽象到更高一层，开发一套通用异步处理队列适用于任何复杂的业务逻辑 那么，作为架构师，使用队列的做法，将抽象层和业务层分离，可具有良好的扩展性和可维护性。相比较而言就高明了许多，下面就我们介绍一下自定义队列的实现思路和方法。 三 :队列总体设计 1：需要队列程序，提供加入队列接口和取队列接口等 2：需要存储队列

Use crontab job send mail, The email text turns to an attached file which named ATT00001.bin

由 偶尔善良 提交于 2020-01-10 01:33:32
问题 I want to analysis some data in one linux server,then send the it as Email text to my Email account , But when i execute this shell scripts in shell command, It works well, Weird is that when i put all the procedure into crontab job, The Email text will turns to an attached file, Can someone help? #* * * * * sh -x /opt/bin/exec.sh >> /opt/bin/mailerror 2>&1 /* exec.sh */ #/bin/sh cd /opt/bin ./analysis.sh > test mail -s "Today's Weather" example@example.com < test But when i execute exec.sh

Centos7.5-Linux计划任务与日志的管理

由 百般思念 提交于 2020-01-07 03:27:44
https://blog.51cto.com/xuegod/2304176 本节所讲内容： - 16.1 计划任务-at-cron-计划任务使用方法 - 16.2 日志的种类和记录的方式-自定义ssh服务日志类型和存储位置 - 16.3 实战-日志切割-搭建远程日志收集服务器 - 16.4 实战-配置公司内网服务器每天定时自动开关机 - 16.1 计划任务-at-cron-计划任务使用方法 大家平常都会有一些比如说：你每天固定几点起床？每天按时上班打卡、每月15号准时开工资、每年2月14你俩口子某某纪念日等这些诸如此类，这些都是定时发生的。或者说是通俗点说：例行公事；还比如说我们还会遇到一些突发事件，临时几点过来加个班？刚好晚上几点聚个餐？ 像上面这些情况，如果事少的话你大脑可以记住，如果事很多，像老板经理董事长每天的工作安排，通常都是记在一些本上，或者闹铃提醒等。 那么，咱们的LINUX系统和上面的情况也很类似，我们也可以通过一些设置。来让电脑定时提醒我们该做什么事了。或者我们提前设置好，告诉电脑你几点做什么几点做什么，这种我们就叫它定时任务。而遇到一些需要执行的事情或任务。我们也可以通过命令来告诉电脑一会临时把这个工作给做一下 总结：在我们LINUX中，我们可以通过crontab和at这两个东西来实现这些功能的 计划任务的作用：是做一些周期性的任务

Running MySQLdump for XAMPP in CentOS

由 醉酒当歌 提交于 2020-01-07 02:16:33
问题 Hopefully I am posting it in the right forums.. Basically, I am trying to run a script that will do a MySQL database dump which works when I run it manually, but crontab doesn't seem to run that particular script for some reason. My crontab is setup as such (for testing purposes, running every minute): * * * * * /opt/lampp/htdocs/xyz/backup/backup.sh The script is setup as such: #!/bin/bash # Script to backup the database /opt/lampp/bin/mysqldump -u root xyz > backup_$(date +%Y%m%d).sql echo

Crontab intervals preg match

由 核能气质少年 提交于 2020-01-06 15:27:17
问题 Purpose: Trusted user puts up a crontab line, give advice when then syntax is wrong I got this one which seems to work well: /^\s*(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+(\S+)\s+\S+\s+.+\S*$/ I want to improve (learning purpose) and tried to reduce the \S+\s : /^\s*[(\S+)\s+]{6}.+\S*$/ When you look at typical crontab lines, all its values are seperated by (any amount of) 6 whitespace characters. 2-20/2 10,20 /3 * * user very -long -cryptic > comand ^\s* \S+ \s+ \S+ \s+ \S+ \s+ \S+\s+\S+\s+ \S* $

Raspberry Pi crontab starts py script at bootup -> logging: error mysql 2002 (can't connect to local server)

由 元气小坏坏 提交于 2020-01-06 14:06:13
问题 A Raspberry Pi (raspian wheezy) has a cronjob, created as user pi with "sudo crontab -e" so it should has root grants. ps aux | grep /home/.../myscript.py ...say it's owner is user "pi"!? (is this correct?) The python script called from crontab is working fine if i call it from the terminal. It's reading data from UART (serial port), and save it into a mysql database. My python script got 'chmod 777' grants. The crontab file: @reboot sudo python /home/pi/pythonprogram/myscript.py & > /home/pi
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