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DOS批处理 & 脚本技术（批处理室） » Please provide more details such as how many minutes to set for the automatic shutdown, etc. If you want to set it to shut down after 30 minutes, the following is a simple batch code: ```batch @echo off shutdown -s -t 1800 ``` Here, `-s` means to start the shutdown operation, and `-t` followed by 1800 means 1800 seconds, which is 30 minutes. If you want to set a different time, you just need to change the number after `-t`. For example, if you want to shut down after 60 minutes, change 1800 to 3600.

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Floor1　okmhy	Posted 2007-06-12 20:28
新手上路　Posts 7　Credits 15
I am too rubbish. Please find a batch script for automatic shutdown at a scheduled time: Requirements: 1. When the computer starts, automatically detect whether it is morning or afternoon. If it is morning, set automatic shutdown at 12 o'clock. If it is afternoon, set automatic shutdown at 17 o'clock. 2. If the computer is started before 8 o'clock in the morning, between 12 o'clock and 13 o'clock, or after 17 o'clock in the evening, automatically shut down. Or cannot start? Please help me, thank you in advance, dear experts!

Floor2　jamesbond	Posted 2007-06-12 23:59
新手上路　Posts 2　Credits 4
Just use AT commands. You make it sound so complicated.

Floor3　baomaboy	Posted 2007-06-13 00:10
银牌会员　Posts 554　Credits 1,513
Can set scheduled shutdown and can query and change tasks: System Shutdown Management → VBS Version

Floor4　HAT	Posted 2007-06-13 12:55
版主　Posts 5,017　Credits 9,023
The code was posted incorrectly, sweat, modify it. @echo off rem Automatically detect in the morning or afternoon at boot, if it's morning, set to auto - shutdown at 12 o'clock. If it's afternoon, set to auto - shutdown at 17 o'clock. rem Before 8 o'clock in the morning, from 12 o'clock to 13 o'clock, and after 17 o'clock in the evening, auto - shutdown when booting.. Or can't boot? set t=%time:~0,2% if %t% lss 8 ( shutdown -s -t 0 ) else if %t% geq 8 ( if %t% lss 12 ( at 12:00 shutdown -s -t 0 ) else if %t% equ 12 ( shutdown -s -t 0 ) else if %t% geq 13 ( if %t% lss 17 ( at 17:00 shutdown -s -t 0 ) else ( shutdown -s -t 0 ) ) ) [ Last edited by HAT on 2007-6-13 at 09:13 PM ]

Floor5　okmhy	Posted 2007-06-13 19:05
新手上路　Posts 7　Credits 15
Thank you very much for the replies from the 3rd and 4th floors. I've learned something.

Floor6　okmhy	Posted 2007-06-13 19:21
新手上路　Posts 7　Credits 15
The `%time:~0,2%` is a substring extraction operation in batch scripting. In batch, for a variable that holds a time value, like `%time%`, the `~` is used for substring extraction. The syntax `%variable:~start,length%` means to extract a substring starting at position `start` with a length of `length`. Here, `%time:~0,2%` is extracting the first 2 characters from the `%time%` variable which represents the hour part of the time. So `set t=%time:~0,2%` is setting the variable `t` to the hour part of the current time.

Floor7　HAT	Posted 2007-06-13 21:06
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The code on the 4th floor has been corrected. [ Last edited by HAT on 2007-6-13 at 09:14 PM ]

Floor8　HAT	Posted 2007-06-13 21:08
版主　Posts 5,017　Credits 9,023
``` //The part after : %time:~,0,2% I don't understand. Can you explain the parameters? set t=%time:~0,2% This means taking the first two digits of the current system time (that is, the hour value) C:\>echo %time% 21:02:30.26 C:\>echo %time:~0,2% 21 [ Last edited by HAT on 2007-6-13 at 09:14 PM ] ```

Floor9　aaa2117	Posted 2007-11-01 16:44
初级用户　Posts 15　Credits 30
It doesn't work when the system service isn't started

Floor10　ldr2zjj	Posted 2007-11-01 20:21
初级用户　Posts 95　Credits 167