FileExists Method
Checks if a file exists on the server.
Syntax
public fun fileExists(remoteFile: String?): Boolean
Remarks
Use this method to check if RemoteFile exists in the current remote directory. This method attempts to detect file existence using SIZE and MLST commands first, and falls back to LIST command if they are not available.
Please note that this command only looks for the file in the current directory. To check for existence of a file in a different directory, change to it with ChangeDir command first, then call this method.