crontab

AWS Elastic Beanstalk, running a cronjob

由 杀马特。学长 韩版系。学妹 提交于 2019-11-26 12:02:23
I would like to know if there is a way to setup a cronjob/task to execute every minute. Currently any of my instances should be able to run this task. This is what I have tried to do in the config files without success: container_commands: 01cronjobs: command: echo "*/1 * * * * root php /etc/httpd/myscript.php" I'm not really sure if this is the correct way to do it Any ideas? Anarchtica This is how I added a cron job to Elastic Beanstalk: Create a folder at the root of your application called .ebextensions if it doesn't exist already. Then create a config file inside the .ebextensions folder.

How is % special in crontab?

由 倾然丶 夕夏残阳落幕 提交于 2019-11-26 11:13:23
问题 In crontab, can you do something like this? * * * * * echo $( date +%F) >> /path/date.txt 回答1: The actual problem of your crontab line is not the $() or the backquotes. The problem is the percent sign % . It has a special meaning in crontabs. From the manpage: ... Percent-signs (%) in the command, unless escaped with backslash (\), will be changed into newline characters, and all data after the first % will be sent to the command as standard input. ... If you escape the percent sign with \ it

How do you run a crontab in Cygwin on Windows?

由 霸气de小男生 提交于 2019-11-26 11:02:53
Some cygwin commands are .exe files, so you can run them with the standard Windows Scheduler, but others don't have an .exe extension so can't be run from DOS (it seems like). For example I want updatedb to run nightly. How do I make cron work? Evan You need to also install cygrunsrv so you can set cron up as a windows service, then run cron-config . If you want the cron jobs to send email of any output you'll also need to install either exim or ssmtp (before running cron-config .) See /usr/share/doc/Cygwin/cron-*.README for more details. Regarding programs without a .exe extension, they are

cronjob does not execute a script that works fine standalone

由 ≯℡__Kan透↙ 提交于 2019-11-26 10:57:15
I have my php script file in /var/www/html/dbsync/index.php . When cd /var/www/html/dbsync/ and run php index.php it works perfectly. I want to call PHP file through sh file, the location of SH file is as below /var/www/html/dbsync/dbsync.sh This is the content of the dbsync.sh file is: /usr/bin/php /var/www/html/dbsync/index.php >> /var/www/html/dbsync/myscript.log 2>&1 -q -f When I cd /var/www/html/dbsync/ and run ./dbsync.sh it works perfectly as well. Now if I set up crontab as below: 1 * * * * /var/www/html/dbsync/dbsync.sh /var/www/html/dbsync However, this crontab is not working as

Running cron job on linux every 6 hours

由 梦想的初衷 提交于 2019-11-26 10:19:12
问题 How can I run command every six hours every day? Tried this not working : /6 * * * * * mycommand 回答1: You forgot a * ,and you've too many fields, and it's the hour you need to care about 0 */6 * * * /path/to/mycommand This means every 6th hour starting from 0, i.e. at hour 0, 6, 12 and 18 Which you could write as 0 0,6,12,18 * * * /path/to/mycommand 回答2: You should include a path to your command, since cron runs with an extensively cut-down environment. You won't have all the environment

How do I create a crontab through a script

由 痴心易碎 提交于 2019-11-26 10:09:03
问题 I need to add a cron job thru a script I run to set up a server. I am currently using Ubuntu. I can use crontab -e but that will open an editor to edit the current crontab. I want to do this programmatically. Is it possible to do so? 回答1: Cron jobs usually are stored in a per-user file under /var/spool/cron The simplest thing for you to do is probably just create a text file with the job configured, then copy it to the cron spool folder and make sure it has the right permissions. 回答2: Here's

Validating Crontab Entries with PHP

由 假如想象 提交于 2019-11-26 09:38:07
问题 What is the best way to validate a crontab entry with PHP? Should I be using a regex, or an external library? I\'ve got a PHP script that adds/removes entries from a crontab file, but want to have some way to verify that the time interval portion is in a valid format. 回答1: Hmmm, interesting problem. If you're going to really validate it, regex isn't going to be enough, you'll have to actually parse the entry and validate each of the scheduling bits. That's because each bit can be a number, a

How to keep Laravel Queue system running on server

由 喜你入骨 提交于 2019-11-26 08:49:46
问题 I recently setup a Laravel Queue system. The basics are a cronjob calls a command which adds jobs to a queue and calls a second command which sends an email. The system works when I ssh into my server and run php artisan queue:listen, but if I close my terminal the listener shuts down and the jobs stack up and sit in queue until I ssh back in and run listen again. What is the best way to keep my queue system running in the background without needing to keep my connection open via ssh? I tried

系统巡检脚本

由 时光怂恿深爱的人放手 提交于 2019-11-26 06:13:08
#!/bin/bash #主机信息每日巡检 IPADDR=$(ifconfig eth0|grep 'inet addr'|awk -F '[ :]' '{print $13}') #环境变量PATH没设好，在cron里执行时有很多命令会找不到 export PATH=/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin source /etc/profile [ $(id -u) -gt 0 ] && echo "请用root用户执行此脚本！" && exit 1 centosVersion=$(awk '{print $(NF-1)}' /etc/redhat-release) VERSION="2017.08.22" #日志相关 PROGPATH= echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,' [ -f $PROGPATH ] && PROGPATH="." LOGPATH="$PROGPATH/log" [ -e $LOGPATH ] || mkdir $LOGPATH RESULTFILE="$LOGPATH/HostDailyCheck-$IPADDR- date +%Y%m%d .txt" #定义报表的全局变量 report_DateTime

linux当中定时任务的编辑问题

由 折月煮酒 提交于 2019-11-26 04:42:04
第一次使用crontab linux选择编辑器问题 第一次使用crontab 时，会出现 no crontab for root - using an empty one “Select a editor …”下面有几个选项，就是叫你选择编辑器。（选vim)就可以了，我选的第三个。 但是如果你选错了，就可能会遇到点麻烦，没有办法正常编辑，crontab -e。 怎么办？ 执行这个命令：select-editor (针对crontab的一个命令）， 可以让你重新选一次。 选择第三个就是我们熟悉的vim编辑器模式 来源： https://blog.csdn.net/weixin_39166924/article/details/98758220
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