文本替换与删除

Powershell下，将"train-remapped.csv"文件中的“， ”替换成","，保存在新的文件"new.csv"中 

$oldfile="C:/Users/Yiwei/Documents/Fanyiwei/Essays/HierClassification/LSHTC/train-remapped/train-remapped.csv"$newfile="C:/Users/Yiwei/Documents/Fanyiwei/Essays/HierClassification/LSHTC/train-remapped/new.csv"$text = (Get-Content -Path $oldfile -ReadCount 0) -join "`n"$text -replace ', ', ',' | Set-Content -Path $newfile

删除"new.csv"文件的第一行

$newnewfile="C:/Users/Yiwei/Documents/Fanyiwei/Essays/HierClassification/LSHTC/train-remapped/newnew.csv"

Get-Content $newfile |select-Object -Skip 1 |Set-Content $newnewfile