crontab

crontab命令是用来设置定时任务规则的配置命令，配置文件/etc/crontab 与/var/spool/cron/目录下当前用户名的文件。 　　-l 显示当前定时任务 　　-e 编辑定时任务 对于root用户: crontab -l 等同于 cat /var/spool/cron/root crontab -e 等同于 vim /var/spool/cron/root crond.service服务管理 要想配置定时任务，首先启动crond服务。 systemctl start crond.service systemctl stop crond.service systemctl status crond.service 开启自启动： systemctl disable crond.service systemctl enable crond.service /etc/crontab 配置问价介绍： [root@55test /etc]# cat /etc/crontab SHELL=/bin/bash PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO=root # For details see man 4 crontabs # Example of job definition: # .---------------- minute

I want my custom made Django command to be executed every minute. However it seems like python /path/to/project/myapp/manage.py mycommand doesn't seem to work while at the directory python manage.py mycommand works perfectly. How can I achieve this ? I use /etc/crontab with: ****** root python /path/to/project/myapp/manage.py mycommand I think the problem is that cron is going to run your scripts in a "bare" environment, so your DJANGO_SETTINGS_MODULE is likely undefined. You may want to wrap this up in a shell script that first defines DJANGO_SETTINGS_MODULE Something like this: #!/bin/bash

My python script is not running under my crontab. I have placed this in the python script at the top: #!/usr/bin/python I have tried doing this: chmod a+x myscript.py Added to my crontab -e: SHELL=/bin/bash PATH=/sbin:/bin:/usr/sbin:/usr/bin MAILTO="" * * * * * /home/me/project/myscript.py My /var/log/cron file says: Sep 21 11:53:02 163-dhcp /USR/SBIN/CROND[2489]: (me) CMD (/home/me/project/myscript.py) But my script is not running because when I check my sql database, nothing has changed. If I run it directly in the terminal like so: python /home/me/project/myscript.py I get the correct

I'm trying to create a cronjob to back up my database every night before something catastrophic happens. It looks like this command should meet my needs: 0 3 * * * pg_dump dbname | gzip > ~/backup/db/$(date +%Y-%m-%d).psql.gz Except after running that, it expects me to type in a password. I can't do that if I run it from cron. How can I pass one in automatically? araqnid Create a .pgpass file in the home directory of the account that pg_dump will run as. See Postgresql documentation libpq-pgpass for details of the format (including the last paragraph where it explains it will be ignored if you