crontab

crontab、chkconfig、systemd、unit、targ

随声附和 提交于 2019-12-03 05:11:51
10.23 linux任务计划cron # cat /etc/crontab liunx下的任务计划配置文件 crontab -u、-e、-l、-r 格式:分 时 日 月 周 user command 分范围0-59,时范围0-23,日范文:1-31,月范围:1-12,星期分为:0-6(sunday=0 or 7) # crontab -e 进入到任务计划编辑界面 0 3 * * * /bin/bash /usr/local/sbin/123.sh >>/tmp/123.log 2>>/tmp/123.log //每个星期,每个月的每天的3点执行命令 0 3 1-10 */2 2,5 /bin/bash /usr/local/sbin/123.sh >>/tmp/123.log 2>>/tmp/123.log //每周二周五,双数月份的前10天的3点,执行任务 # sytemctl start crond 启动服务 # systemctl stop crond //关闭服务 # ps aux | grep cron 查看是否有此进程 # systemctl status crond 查看状态,Actice绿色启动该 计划在/var/spool/cron/root(最后是以用户名命名的文件) # cront -l //列出信息 # cront -e //编辑 # cront -r /

How to use CRON in xampp windows? Step by step to be followed to use in development [closed]

廉价感情. 提交于 2019-12-03 05:04:27
Closed. This question is off-topic. It is not currently accepting answers. Learn more . Want to improve this question? Update the question so it's on-topic for Stack Overflow. What are the steps to be taken in xampp[codeigniter] to use cron and how to make the cron to call our function in XAMPP Windows ? Do we need to download any exe to run this cron? create a batch file to run your php script using php executable "C:\xampp\php\php.exe C:\wamp\www\index.php" add this batch file in Scheduled Task in Windows control panel. how to create a batch file thats the code to be written inside batch

CRONTAB syntax error

那年仲夏 提交于 2019-12-03 04:21:02
Herer is my CRONTAB file (Ubuntu 10.10): 57 1 * * 2-6 ET=`date --date 'yesterday'+%Y%m%d`;echo $ET Even The syntax color indicate that something is wrong. and there is this error: Subject: Cron <root> ET=`date --date 'yesterday' + (failed) Content-Type: text/plain; charset=ANSI_X3.4-1968 X-Cron-Env: <SHELL=/bin/sh> X-Cron-Env: <HOME=/root> X-Cron-Env: <PATH=/usr/bin:/bin> X-Cron-Env: <LOGNAME=root> /bin/sh: Syntax error: EOF in backquote substitution But I am not sure whats wrong. Thanks a lot! brightlancer Cron needs to escape the % sign - http://www.hcidata.info/crontab.htm Try it with a

How to write cron job in AWS EC2 server

北城以北 提交于 2019-12-03 03:44:53
问题 I've created a cron job in AWS EC2 but it is not working. I followed below steps to create cron tab: Step 1: I logged in to AWS EC2 Instace step 2: crontab -e Step 3: Insert mode Step 4: I entered * * * * * php/var/www/html/welcome.php (To run every min.) Step 5: :wq Cron tab is created but not running. Please can you any one help me if is there any PHP script means please provide me. Do I need to give spaces between every star? 回答1: First of all, you need to put an space between php and /var

how to set cron job from php script?

百般思念 提交于 2019-12-03 03:07:35
i am new to cron job . i studied some basics about cron job . i can able to call php using cron tab. By using following command in /etc/crontab 10 * * * * root /usr/bin/php /var/www/PATH TO SCRIPT/email.php In email.php i have following code #!/usr/bin/php <?php mail ("examplemail@mail.com", "Cron Successful Public HTML!","Hello World from mycron.php!"); ?> For every 10mins i am getting mail. But i need to know is there any way to call cron job from php ( invoke cron from php) i get some idea by surfing but i am not able to figure out the exact way to do my job . Here is code which i used to

Appending to crontab with a shell script on Ubuntu

跟風遠走 提交于 2019-12-03 02:36:32
问题 I'm trying to add a line to the crontab on Ubuntu. Right now, I'm doing crontab -e and editing the crontab there. However, I can't seem to find the real crontab file, since crontab -e seems to give you a temporary working copy. /etc/crontab looks like the system crontab. What is the path of the crontab that crontab -e saves to? Thanks! 回答1: Use crontab -l > file to list current user's crontab to the file , and crontab file , to install new crontab. 回答2: You can also do it without a temporary

How to install crontab on Centos

不羁岁月 提交于 2019-12-03 01:10:12
问题 I am familiar to setup the cron scheduler using crontab -e command on my centos . But today I found one of my centos servers doesn't have this command I have tried to install this using yum install crontab but no luck. Then I tried yum install crontabs and it installed something ============================================================================= Package Arch Version Repository Size ============================================================================= Updating: crontabs

Crontab not running my python script

匿名 (未验证) 提交于 2019-12-03 00:59:01
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 由 翻译 强力驱动 问题: 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

How to set cronjob with non-root user?

匿名 (未验证) 提交于 2019-12-03 00:46:02
可以将文章内容翻译成中文,广告屏蔽插件可能会导致该功能失效(如失效,请关闭广告屏蔽插件后再试): 问题: Error : crontab: must be suid to work properly I want to set cronjob in docker container with non-root user. Is it possible to set a cron without using sudo and without installing cron? I am using alpine docker container. 回答1: Yes you can run its own, cron in specific user without sudo, As each user will be having the crontab file no need to install it explicitly. to run crontab of any user, use -u option , please note that user must be privileged to use -u $ crontab -u <username> -e 回答2: /etc/crontab is the system wide crontab . The format

How does cron internally schedule jobs?

左心房为你撑大大i 提交于 2019-12-03 00:42:35
问题 How do "modern" cron daemons internally schedule their jobs? Some crond s used to schedule a run every so often via at . So after a crontab is written out, does crond : Parse the crontab for all future events and the sleep for the intervals? Poll an aggregated crontab database every minute to determine if the current time matches the schedule pattern? Other? Thanks, 回答1: A few crickets heard in this question. Good 'ol RTFC with some discrete event simulation papers and Wikipedia: http://en