Every 15 Minutes Every 30 Minutes 01234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859 Hours Every Hour Even Hours Odd Hours Every 6 Hours Every 12 Hours Midnight1am2am3am4am5am6am7am8am9am10am11amNoon1pm2pm3pm4pm5pm6pm7pm8pm9pm10pm11pm ...
#(put your own initials here)echo the date to the console every #15minutes between 6pm and 6am 0,15,30,45 18-06 * * * /bin/echo ‘date’ > /dev/console 保存并退出。确信前面5个域用空格分隔。 在 上面的例子中,系统将每隔1 5分钟向控制台输出一次当前时间。如果系统崩溃或挂起,从最后所...
080***pcp/usr/libexec/pcp/bin/pmie_daily -X xz -x 3 &>/dev/null # every 30 minutes, check pmie instances are running 28,58***pcp/usr/libexec/pcp/bin/pmie_check -C &>/dev/null 再继续观察,maillog已经没有发送了(目前是20:30,编辑时间为20:20) tail -f/var/log/maillog Apr9 ...
Every cron job uses five fields. Here is an explanation of what each field does in this cron, which runs “every 3 hours at 30 minutes past the hour“: Field 1: (30) indicates that the task will be run atminute30. Field 2: (*/3) indicates that the task will be run every 3hour...
# (put your own initials here)echo the date to the console every # 15minutes between 6pm and 6am 0,15,30,45 18-06 * * * /bin/echo ‘date’ > /dev/console 保存并退出。确信前面5个域用空格分隔。 在上面的例子中,系统将每隔1 5分钟向控制台输出一次当前时间。如果系统崩溃或挂起,从最后所...
# (put your own initials here)echo the date to the console every # 15minutes between 6pm and 6am 0,15,30,45 18-06 * * * /bin/echo 'date' /dev/console 保存并退出。确信前面5个域用空格分隔。 在上面的例子中,系统将每隔1 5分钟向控制台输出一次当前时间。如果系统...
# (put your own initials here)echo the date to the console every # 15minutes between 6pm and 6am 0,15,30,45 18-06 * * * /bin/echo ‘date’ > /dev/console 保存并退出。确信前面5个域用空格分隔。 在 上面的例子中,系统将每隔1 5分钟向控制台输出一次当前时间。如果系统崩溃或挂起,从最后...
Odd Minutes Every 5 Minutes Every 10 Minutes Every 15 Minutes Every 30 Minutes Every 45 Minutes Custom Hours Template Every Hour Even Hours Odd Hours Every 4 Hours Every 6 Hours Every 8 Hours Every 12 Hours Custom Days Template Every Day Even Days Odd Days Every 5 Days Every 10 Days...
# (put your own initials here)echo the date to the console every# 15minutes between 6pm and 6am0,15,30,45 18-06 * * * /bin/echo 'date' > /dev/console 保存并退出。确信前面5个域用空格分隔。在上面的例子中,系统将每隔1 5分钟向控制台输出一次当前时间。如果系统崩溃或挂起,从最后所显示...
If you wish to run your cron job every 30 minutes then use: */30 * * * * /path/to/script To schedule cron to run after every 5 hours, run * */5 * * * /path/to/script To run a script on selected days, for example, Wednesday and Friday at 6.00 pm execute: ...