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+--- Thread: Regular Expression, remove everything after last forward slash (/Thread-Regular-Expression-remove-everything-after-last-forward-slash)
Regular Expression, remove everything after last forward slash - norland174 - 07-21-2023
I'm trying to use a regular expression within PowerShell to remove everything from the last slash in this string;
NorthWind.ac.uk/Users/Current/IT/Surname, FirstName
NorthWind.ac.uk/Users/Dormant/DifferentArea/Surname, FirstName
I need to remove Surname, FirstName including the /.
The string should look like this.
NorthWind.ac.uk/Users/Current/IT
If someone could help me, I would be very grateful.
I have tried this; ` -replace '([/])$',''` but I can't seem to get it to work.
Thanks
RE: Regular Expression, remove everything after last forward slash - Sirruntinesses337 - 07-21-2023
Replace `/[^/]*$` with an empty string
RE: Regular Expression, remove everything after last forward slash - nestarckdag - 07-21-2023
check this regex
[To see links please register here]
?2vhlli can't test it on powershell but it work in the regex generator
/(?!.*/).*
RE: Regular Expression, remove everything after last forward slash - oswaldifwknuhr - 07-21-2023
Here's a solution that doesn't require regular expressions:
PS> $cn = 'NorthWind.ac.uk/Users/Current/IT/Surname, FirstName' -split '/'
PS> $cn[0..($cn.count-2)] -join '/'
NorthWind.ac.uk/Users/Current/IT
RE: Regular Expression, remove everything after last forward slash - Mrnoncontagiousness304 - 07-21-2023
Here's another solution that doesn't require regular expressions:
Take a substring of your string starting at the beginning of the string and ending before the index of the last slash in your string:
PS> $indexoflastslash = ("NorthWind.ac.uk/Users/Current/IT/Surname, FirstName").lastindexof('/')
PS> "NorthWind.ac.uk/Users/Current/IT/Surname, FirstName".substring(0,$indexoflastslash)
RE: Regular Expression, remove everything after last forward slash - vkamooro508 - 07-21-2023
This solution doesn't use regexes.
I believe this approach is probably easier to understand, after all regexes - in general - are hard to read:
`NorthWind.ac.uk/Users/Current/IT/Surname, FirstName` has a path-like structure (windows also supports the forward slash as a path separator), so we could use split-path to return the parent 'directory' path.
Because '\' is the default path separator, we need to replace the '\' with '/' after doing this:
(split-path NorthWind.ac.uk/Users/Current/IT/Surname, FirstName).replace('\','/')
# will return NorthWind.ac.uk/Users/Current/IT