Batch file textfile按负值处理

我得到了下面的文本文件。我想解析槽，将所有输入为负的行放在一个文本文件中，所有输入为正的行放在另一个文本文件中。如何管理

感激的帮助

   39.93120000     14318.98314981793         549.1248138635204
   39.93480000     14207.58401258784         533.3688586990800
   39.93840000     14668.87500855270         506.8355357433776
   39.94200000     14364.81298137747         523.5021767630467
   39.94560000     14345.01825913795         522.9223798929314
   39.94920000     14266.44146878225         568.0035355907847
   39.95280000     14575.20734902781         593.3706907927941
   39.95640000     14588.52376078192         610.6837211933131
   39.96000000     14332.24884001532         388.5737178283878
   39.96360000     14533.92791344165         539.5396926983177
   39.96720000     14350.80457814612         510.0423201220646
   -39.97080000     14196.71360046875         514.3275994436243
   -39.97440000     14051.71265422134         527.4882736778169
   -39.97800000     14038.57270550476         503.0691346196745
   -39.98160000     14359.74967748116         520.6326881374556
   -39.98520000     14710.85875093256         516.4180753359947
   -39.98880000     14266.49788517777         690.0481714109405
   -39.99240000     14198.67205164648         608.3535256285546
   -39.99600000     14417.30585582810         662.5276659319838
   -39.99960000     14615.74632666744         599.8846644801356

到目前为止，var测试没有给我行的第一个字符的输出

cls
@echo off

SET sourcefile=sourcefile.txt

for /F "tokens=*" %%A in (%sourcefile%) do (

    for /F "tokens=*" %%B in (%%A) do (
        SET leadingLetter= %%B:~0,1%
        echo %leadingLetter%

    )

)

---

您说您正在处理完整的行，所以这将满足您的要求

@echo off
find "-" <filein.txt >negative.txt
find /v "-" <filein.txt >positive.txt

@echo关闭
查找“-”negative.txt
查找/v“-”正值.txt

有很多可能性。我看到您已经将问题标记为“批处理文件”-您是特别想要一个DOS/Windows命令批处理，还是可以使用Python、Perl、sed等解决方案？我想要使用批处理