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DOS批处理 & 脚本技术（批处理室） » How to tell in a batch file whether a certain program has already been loaded?

Floor1　Lydong	Posted 2002-11-30 00:00
元老会员　Posts 407　Credits 1,468　From 广州
In a batch file, sometimes you want to determine whether a TSR has already been run, so as to execute the corresponding program. What I want to ask is: is there any way to let a batch file detect this automatically?

Floor2　MYS	Posted 2002-12-01 00:00
元老会员　Posts 1,637　Credits 5,170　From 广东佛山
Unless you set an environment variable when starting it, it is impossible for a batch file itself to detect whether a program has already been loaded. For example, add a line after UCDOS.BAT: “set ucdos=onload" And if you write a batch file to exit UCDOS, also add "SET UCDOS=" after it That way, in the batch file you can use IF UCDOS =="onload" to determine whether UCDOS has been loaded.

Floor3　Wengier	Posted 2002-12-01 00:00
系统支持　Posts 10,521　Credits 27,736
You can use some specialized tools, such as TSR Utils, to determine whether a specified program has already been loaded.

Floor4　Lydong	Posted 2002-12-01 00:00
元老会员　Posts 407　Credits 1,468　From 广州
I downloaded TSR Utils, but I don't know how to use it. Wengier, could you introduce it a bit? Thanks!

Floor5　Wengier	Posted 2002-12-01 00:00
系统支持　Posts 10,521　Credits 27,736
For example: MAPMEM /C COMMAND can determine whether COMMAND is loaded. If you also want to include UMB, add the /U option, that is, MAPMEM /U /C COMMAND. It can not only directly display on the screen whether this program has already been loaded, it will also automatically set the ERRORLEVEL value: if it is loaded, it is 0; if not loaded, it is 2; if there is a syntax error, it is 1.

Floor6　Lydong	Posted 2002-12-01 00:00
元老会员　Posts 407　Credits 1,468　From 广州
Why does it stop moving as soon as I enter it (it seems to hang)? I don't know whether there is a problem with the software. The prompt is as follows: c:\tsrcom35>mapmem /c command MAPMEM 3.5, Copyright 1993 TurboPower Software _

Floor7　Wengier	Posted 2002-12-02 00:00
系统支持　Posts 10,521　Credits 27,736
No way! Could it be that your system was unstable at the time?

Floor9　mobo	Posted 2006-09-24 09:13
初级用户　Posts 30　Credits 73
::Check whether there is a specified running program in the process list, such as 'explorer.exe' ::------------BY　MOBO[墨伯] ::-------------2006-09-22 wmic process where name='explorer.exe' get caption>out.txt We should still make more use of WMIC. A stone from another mountain may polish jade; it provides a large number of interfaces for reading software and hardware [about 6000 properties], and also some methods, all of them quite useful.