windows 在批处理脚本中检查文件大小
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Checking file size in a batch script
提问by Di Zou
I am trying to find the size of a file and if it is greater than 0, I want to do some stuff. I have this code:
我试图找到一个文件的大小，如果它大于 0，我想做一些事情。我有这个代码：
set file="C:\AnalyzerCheck\loaded.txt"
set minbytesize=0
if exist %file% (
FOR /F "usebackq" %A IN ('%file%') DO set size=%~zA
if %size% GTR %minbytesize% (
//do stuff
) else (
//do stuff
)
However, I am getting this ouput/error when I run the script:
但是，运行脚本时出现此输出/错误：
C:\AnalyzerCheck>set file=C:\AnalyzerCheck\loaded.txt
C:\AnalyzerCheck>set minbytesize=0
file~zA was unexpected at this time.
C:\AnalyzerCheck>FOR /F "usebackq" file~zA
C:\AnalyzerCheck>
C:\AnalyzerCheck>设置文件=C:\AnalyzerCheck\loaded.txt
C:\AnalyzerCheck>set minbytesize=0
file~zA 这时候出乎意料。
C:\AnalyzerCheck>FOR /F "usebackq" 文件~zA
C:\AnalyzerCheck>
How do I fix this error?
我该如何解决这个错误？
Edit:
编辑：
New error:
新错误：
回答by Aacini
This command:
这个命令：
FOR /F "usebackq" %A IN ('%file%') DO set size=%~zA
have two errors: You must not use /F option (neither "useback" option) because you want not to read the file CONTENTS, but just process the file NAME. Also, if this command is inside a Batch file, the A replaceable parameter must have two percent signs:
有两个错误：您不能使用 /F 选项（既不是“useback”选项），因为您不想读取文件 CONTENTS，而只想处理文件 NAME。此外，如果此命令在批处理文件中，则 A 可替换参数必须有两个百分号：
FOR %%A IN (%file%) DO set size=%%~zA
回答by Mike Q
Within a scipt,
在一个 scipt 中，
This Command:
这个命令：
for /f %%A in ("myfile.txt") do set size=%%~zA
Or This Command:
或者这个命令：
set "filename=myfile.txt"
for %%A in (%filename%) do echo.Size of "%%A" is %%~zA bytes
Or This Command:
或者这个命令：
set "filename=myfile.txt"
for /f %%A in (%filename%) do set size=%%~zA
回答by rchacko
@echo off
cd C:\MyFolder\
set file="MyFile.txt"
set maxbytesize=0
FOR /F "usebackq" %%A IN ('%file%') DO set size=%%~zA
if %size% GTR %maxbytesize% (
//do stuff
) ELSE (
//do stuff
)
