How to get the index of the last occurence of a char in PowerShell string?

问题

I want to get the index of the last "\" occurrence in order to trim the "Activity" word and keep it, from following string in PowerShell:

$string = "C:\cmb_Trops\TAX\Auto\Activity"

I'm converting the code from VBScript to PowerShell and in VB there's this solution :

Right(string, Len(string) - InStrRev(string, "\"))

Using Right and InStrRev functions which makes the life more easier. Unfortunately I didn't find anything like it in PowerShell. Can't find any option to scan from the end of the string.

回答1:

$String.Split("\")[-1]

Or if $String is actually a real path, you might consider:

Split-Path $String -Leaf

回答2:

$string = "C:\cmb_Trops\TAX\Auto\Activity"
$string = $string.Substring($string.lastIndexOf('\') + 1)
echo $string

Check out:

https://community.spiceworks.com/topic/1330191-powershell-remove-all-text-after-last-instance-of

来源：https://stackoverflow.com/questions/51382576/how-to-get-the-index-of-the-last-occurence-of-a-char-in-powershell-string