I know I can use svn list -v "SVN:URL/file.txt" to get a details of file. I'm looking to get the last modified time of the file and pipe to a variable where i can use further with powershell code.
svn list -v "SVN:URL/file.txt"
Following my first comment, you can adjust the Linux command to match the Powershell's syntax :
$yourvariable = svn info "SVN:URL/file.txt" | Select-String '^Text Last Updated:' | %{$_ -replace "Text Last Updated: "}
A few comments about this :
If you want to retrieve another data, just modify the strings in the command (Text Last Updated, Path, Name, Last Changed Author, etc...).