3. cron中的通配符 ,表示都触发; 两个及以上的时间点中间用了逗号合开,表示在这几个时间点中都执行,如5,8表示在第5分第8分都执行该定时任务 -表示在连续范围内都触发;如1-3 是 “时”这个域,表示1点到3点每小时都触发一次 *表示所有值,都,‘每’, 如在 ‘秒’ 这个域中表示每一秒触发一次 ?表示不...
# Each task to run has to be defined through a single line # indicating with different fields when the task will be run # and what command to run for the task # # To define the time you can provide concrete values for # minute (m), hour (h), day of month (dom), month (mon)...
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 6 minutes“: Field 1: (*/6) indicates that the task will be run every 6minutes. Field 2: (*) indicates that the task will be run everyhour. Field 3: (*) indicates ...
Crontab Format Each cron job to run has to be defined through a single line indicatingwhenthe cron job will be run andwhat commandto run for the cron job. To define the time you can provide concrete values forminute,hour,day of month,monthandday of week. You can use a wildcard*in th...
A cron job is a process that is automatically run at whatever time you set it to run. This can be each day, each hour of every day, every 5 minutes of every hour of every day. Setting up a cron job can be a daunting task if you don't know what you're doing. It appears to ...
foreach name ($flist) setenv CLASSPATH ${CLASSPATH}:${name} end 循环设定环境变量。下面几句的功能就是将jar文件设定到环境变量,让java程序得以执行。 setenv CLASSPATH '.' set batch_home=/home/oracle/project/ set flist=`ls $batch_home/lib/*.jar` ...
Here is an explanation of what each field does in this cron, which runs “every 12 hours“: Field 1: (0) indicates that the task will be run at minute 0. Field 2: (*/12) indicates that the task will be run every 12 hours. Field 3: (*) indicates that the task will be run ...
This job will fire at midnight on days 1 (Monday)– 5 (Friday). * * 3,5,10 * * [COMMAND] Our last cron job example will trigger every minute on the 3rd, 5th, and 10th of every month. You can list values for each column like this by using a comma (,). Editing the Crontab ...
#DT:delete core files,at 3.30am on 1,7,14,21,26,26 days of each month 30 3 1,7,14,21,26 * * /bin/find -name “core’ -exec rm {} ; 4). 删除crontab文件 要删除crontab文件,可以用: $ crontab -r 5). 恢复丢失的crontab文件 ...
# DT:delete core files,at 3.30am on 1,7,14,21,26,26 days of each month 30 3 1,7,14,21,26 * * /bin/find -name “core’ -exec rm {} \; 4). 删除crontab文件 要删除crontab文件,可以用: $ crontab -r 5). 恢复丢失的crontab文件 ...