批处理文件拆分.csv文件 [英] Batch file to split .csv file

问题描述

我有一个非常大的.csv文件（> 500MB），我希望打破这一成成更小的.csv文件中的命令提示符。 （基本上是试图找到一个Linux的分割功能在Windows。

I have a very large .csv file (>500mb) and I wish to break this up into into smaller .csv files in command prompt. (Basically trying to find a linux "split" function in Windows".

这已经是一个批处理脚本作为我的机器只安装了窗户，并要求软件是一种痛苦。我碰到了一些样品codeS来到（<一个href=\"http://forums.techguy.org/software-development/1023949-split-100000-line-csv-into.html\">http://forums.techguy.org/software-development/1023949-split-100000-line-csv-into.html),然而，当我执行批处理这是行不通的。我得到的是，只有125KB，当我要求它每20万行解析一个输出文件。

This has to be a batch script as my machine only has windows installed and requesting softwares is a pain. I came across a number of sample codes (http://forums.techguy.org/software-development/1023949-split-100000-line-csv-into.html), however, it does not work when I execute the batch. All I get is one output file that is only 125kb when I requested it to parse every 20 000 lines.

有没有人碰到过类似的问题，你是怎么解决这个问题？

Has anyone ever come across a similar problem and how did you resolve the issue?

推荐答案

尝试了这一点：

@echo off
setLocal EnableDelayedExpansion

set limit=20000
set file=export.csv
set lineCounter=1
set filenameCounter=1

set name=
set extension=
for %%a in (%file%) do (
    set "name=%%~na"
    set "extension=%%~xa"
)

for /f "tokens=*" %%a in (%file%) do (
    set splitFile=!name!-part!filenameCounter!!extension!
    if !lineCounter! gtr !limit! (
        set /a filenameCounter=!filenameCounter! + 1
        set lineCounter=1
        echo Created !splitFile!.
    )
    echo %%a>> !splitFile!

    set /a lineCounter=!lineCounter! + 1
)

由于在code上面显示，将原来的CSV文件分成多个CSV文件分割为20万行的限制。所有你需要做的是改变！文件！和！极限！变量相应。希望它帮助。

As shown in the code above, it will split the original csv file into multiple csv file with a limit of 20 000 lines. All you have to do is to change the !file! and !limit! variable accordingly. Hope it helps.

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