powershell - 从 for 内的字符串中删除字符

Question

我试图通过删除最后 25 个字符来获取病毒的文件夹位置，我发现可以使用我已经测试过并且工作正常的这段代码来实现这一点

$string = "the scripts"
$string = $string.Substring(0,$string.Length-1)
$string

示例字符串

C:\Users\jose\Desktop\MUSICA\011_Leyendas\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\70'S, 80'S & 90'S.english\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\90\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\AlbertoBarro\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\BACHATA\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\CHICO CHE MEZCLADO\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe         C:\Users\jose\Desktop\MUSICA\joan sebastian - M. A. Solís\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exeC:\Users\jose\Desktop\MUSICA\JUAN GABRIEL 1 DUOS\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe

While trying to do it within a FOR the substring method doesn't cut the string correctly, some idea of why is not working any these sample code

$viruslocation = Get-Content -Path .\Desktop\virus.txt

for ($i = 1; $i -lt $viruslocation.Count; $i++) { 
    $Length =$viruslocation[$i]
    $tem= $Length.Substring(0,$Length.Length-22)
    write $tem
}

for ($i = 1; $i -lt $viruslocation.Count; $i++) { 
    $tem= $viruslocation[$i].Substring(0,$viruslocation[$i].Length-22)
    write $tem
}

预期结果

C:\Users\jose\Desktop\MUSICA\011_Leyendas\nlwdvakybapcybqkvcfwr

Answer 1

GetDirectoryName 是您要查找的内容:

$virusLocations = 'C:\Users\jose\Desktop\MUSICA\011_Leyendas\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\70''S, 80''S & 90''S.english\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\90\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\AlbertoBarro\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\BACHATA\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\CHICO CHE MEZCLADO\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\joan sebastian - M. A. Solís\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe',
'C:\Users\jose\Desktop\MUSICA\JUAN GABRIEL 1 DUOS\nlwdvakybapcybqkvcfwr\nlwdvakybapcybqkvcfwr.exe'

$virusLocations | % {
    [System.IO.Path]::GetDirectoryName($_)
}