cron

问题 In my VPS, I have created a docker image containing cron running as entry command. I also have a sample cron file that says it should execute the command every 5 minutes. Dockerfile: FROM centos:centos7 MAINTAINER Lysender <foo@example.com> # Install packages RUN yum -y update && yum clean all RUN yum -y install epel-release && yum clean all RUN yum -y install git \ bind-utils \ pwgen \ psmisc \ net-tools \ hostname \ curl \ curl-devel \ sqlite \ cronie \ libevent \ gearmand \ libgearman \

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 6 years ago . How could I append a cron task in crontab via a perl script? I thought of the following: #!/usr/bin/perl use strict; use warnings; `crontab<<EOL 00 * * * * /home/slynux/download.sh EOL` I don't want to mess up things, so am I on the right track? Also if I append it, how would I remove it? I am new in Perl 回答1:

问题 I'm running vTiger 7.0 and I noticed on the first of the month, none of my invoices were created. I then took a look at the Scheduler and noticed that the "Last scan started" and "Last scan ended" fields show that none of the cron jobs had fired in days. The cron jobs are scheduled to fire in 15 minute intervals, with the exception of "RecurringInvoice" which runs every 12 hours. If I visit /myvtigerinstall/vtigercron.php, the cron jobs will all fire but nobody wants to have to manually run

问题 The following writes stdout to a logfile and prints stderr: bash script.sh >> out.log This again writes both stdout and stderr to a logfile: bash script.sh >> out.log 2>&1 How to combine both features, so that stdout and stderr are logged to a file and stderr is emailed to my inbox? 回答1: bash script.sh 2>&1 >> out.log | tee -a out.log First, I'm redirecting stdout to file and stderr to stdout ( stdout line gets to the out.log file and stderr to pipe). The tee command prints stdin to both

问题 The following writes stdout to a logfile and prints stderr: bash script.sh >> out.log This again writes both stdout and stderr to a logfile: bash script.sh >> out.log 2>&1 How to combine both features, so that stdout and stderr are logged to a file and stderr is emailed to my inbox? 回答1: bash script.sh 2>&1 >> out.log | tee -a out.log First, I'm redirecting stdout to file and stderr to stdout ( stdout line gets to the out.log file and stderr to pipe). The tee command prints stdin to both

问题 In our app, we have an ability to schedule tasks and we converting this functionality to Quartz. One of the problems that I have is scheduling recurring task that should run, for example, every third day. The cron expression that I had in mind first of all is: 0 37 18 */3 * ? * But what this will do, is execute that job on 1,4,7, etc... Which is fine, assuming that I want to start from the first day of the month. However, how to deal with this issue if I need to start from 11th? I could do

问题 In our app, we have an ability to schedule tasks and we converting this functionality to Quartz. One of the problems that I have is scheduling recurring task that should run, for example, every third day. The cron expression that I had in mind first of all is: 0 37 18 */3 * ? * But what this will do, is execute that job on 1,4,7, etc... Which is fine, assuming that I want to start from the first day of the month. However, how to deal with this issue if I need to start from 11th? I could do

问题 I'm in the middle of an installation of Boonex's Dolphin 7. It requires me to set up a cron job that will run every 1 minute. However, my hosting provider allows me to run crons once every 30 minutes minimum. I have used CMSs that have a substitute for that - a script that replaces cron. Is there such a script that I can use for dolphin? .. a name or a link would be nice. 回答1: If you have a high traffic page, you could try using PHP PsuedoCron (http://www.bitfolge.de/?l=en&s=pseudocron) which

问题 I am looking for the way to convert cron expression from one timezone to another one timezone. For example, my web-client user is GMT+1200 and my server-side is GMT+0800, while user setting 02:10 to execute task every Tuesday and Thursday, the cron expression will be "0 10 2 3,5 * ?", and I have used code as below, it can get current fire time for user's timezone CronExpression expr = new CronExpression("0 10 2 3,5 * ?"); System.out.println(expr.getNextValidTimeAfter(new Date())); System.out

问题 I'm trying to create a cron that daily backups my MySQL slave. The backup.sh content: #!/bin/bash # # Backup mysql from slave # # sudo mysql -u root -p'xxxxx' -e 'STOP SLAVE SQL_THREAD;' sudo mysqldump -u root -p'xxxxx' ng_player | gzip > database_`date +\%Y-\%m-\%d`.sql.gz sudo mysqladmin -u root -p'xxxxx' start-slave I made it executable by sudo chmod +x /home/dev/backup.sh and entered in to crontab by: sudo crontab -e 0 12 * * * /home/dev/backup.sh but it doesn't work, if I only run in the