Windows Batch wmic OS 获取 FreePhysicalMemory

Question

我尝试编写一个批处理文件，它为我提供了可用的物理内存。此批处理应每 X 秒写入一个时间戳并在文本文件中写入以下命令:

wmic OS get FreePhysicalMemory

我的批处理文件如下所示:

:loop
(
@echo %time% %date%  
wmic OS get FreePhysicalMemory /Value
)>testMEMORY.txt
timeout /t 10 
goto loop

这是输出:

13:54:54,76 04.11.2019  




 F r e e P h y s i c a l M e m o r y = 7 2 0 6 6 4 8 

我不明白，为什么我有很多新行，并且每个字符后面有一个空格。有人可以帮我吗？

Answer 1

WMIC的输出是unicode!

尾随<CR>可以通过将值传递给另一个 FOR /F 来删除循环。

这也删除了虚拟的“空白”行(实际上是 <CR> )

@echo off
If Exist testMEMORY.txt Del testMEMORY.txt
:loop
(
    @echo %time% %date%  
    for /f "skip=1 delims=" %%a in ('wmic OS get FreePhysicalMemory /Value') do (
        for /f "delims=" %%b in ("%%a") do (
            echo %%b
        )
    )
)>>testMEMORY.txt
timeout /t 10 /nobreak>nul 
goto loop

所以，我得到的结果是 testMEMORY.txt类似的东西:

15:32:19.02 04/11/2019  
FreePhysicalMemory=528592
15:32:29.19 04/11/2019  
FreePhysicalMemory=530804
15:32:39.14 04/11/2019  
FreePhysicalMemory=531156
15:32:49.21 04/11/2019  
FreePhysicalMemory=530968
15:32:59.16 04/11/2019  
FreePhysicalMemory=531936
15:33:09.23 04/11/2019  
FreePhysicalMemory=530376
15:33:19.18 04/11/2019  
FreePhysicalMemory=524980
15:33:29.16 04/11/2019  
FreePhysicalMemory=521816
15:33:39.21 04/11/2019  
FreePhysicalMemory=465820
15:33:49.17 04/11/2019  
FreePhysicalMemory=461312
15:33:59.17 04/11/2019  
FreePhysicalMemory=385172
15:34:14.21 04/11/2019  
FreePhysicalMemory=529800
15:34:24.13 04/11/2019  
FreePhysicalMemory=541064