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DOS批处理 & 脚本技术（批处理室） » How to determine if the free space on drive D is greater than 1GB?

Floor1　mp3down	Posted 2006-12-13 03:12
初级用户　Posts 14　Credits 43
Please: How to determine if the free space on drive D is greater than 1GB? Thank you.

Floor2　mp3down	Posted 2006-12-13 03:34
初级用户　Posts 14　Credits 43
Supplement: It needs to run normally under pure DOS, thank you.

Floor3　yusir0710	Posted 2006-12-18 15:25
新手上路　Posts 2　Credits 6
@ECHO OFF setlocal EnableDelayedExpansion for /f "tokens=3" %%i in ('dir /-c D:\') do set freesize=%%i set /a freesize=!freesize:~0,-6!/1024>nul ECHO %freesize% set /a baseCapacity=1 PAUSE IF %freesize% GTR %baseCapacity% goto gtr ECHO The space is less than %baseCapacity%G pause exit :gtr ECHO The space is greater than %baseCapacity%G pause [ Last edited by yusir0710 on 2006-12-18 at 02:37 AM ]

Floor4　NaturalJ0	Posted 2006-12-18 22:32
银牌会员　Posts 533　Credits 1,181
The one upstairs is for use under CMD, and it can't be used in pure DOS. I haven't thought of how to judge in pure DOS for the time being.

Floor5　redtek	Posted 2006-12-19 02:38
金牌会员　Posts 1,147　Credits 2,902
This is interesting~:) I wonder if Brother mp3down has found out what method they used in some tools like one-click recovery disks? Assembly... Function call 36H can obtain the free disk space, and then operate Debug with the prompt method to directly write assembly code, so that no temporary files can be generated. (Another: The above method can be realized without calling third-party tools) (Then continue to directly compare in Debug whether it is greater than 1G or less than 1G, call 4CH DOS function to return a flag number to ERRORLEVEL, and the batch processing will judge) (Theoretically completely achievable) The above is just a suggestion for you, I can't code~:) Brother can post to the "DOS Development Programming & Development Exchange (Development Room)" in the forum to ask what the principle code of directly operating Debug above is, maybe it can solve the urgent problem~:)

Floor6　lianjiang2004	Posted 2006-12-19 02:49
金牌会员　Posts 1,884　Credits 3,946
GMY's one-click GHOST does not itself judge the available space size of the partition where the backup is saved. Instead, it provides the reason based on the error file generated by GHOST when GHOST encounters an error.

Floor7　lizaoyou	Posted 2007-02-09 22:53
中级用户　Posts 85　Credits 210　From 广东广州
Implementing under DOS is relatively complicated. The following is an example of using batch to extend strings.com: @echo off echo. set v= dir d:\\|find "free">tmp strings s=read tmp,1 strings/p- s=mid %s%-9 strings/p- s=parse %s%-1 strings/p- s1=parse %s%-1-, strings/p- s2=parse %s%-2-, strings/p- s3=parse %s%-3-, strings v=sub %s1%%s2%%s3%,1024>unl if "%v%"=="" goto lss echo DiskFree ">" 1GB goto end :lss echo DiskFree "<" 1GB :end del tmp echo. [ Last edited by lizaoyou on 2007-2-9 at 09:55 AM ]