Dashed filename11/29/2023 ![]() ![]() ![]() The same applies for creating directory names. and include the trailing dots, the x-ms-allow-trailing-dot should be included in request header and set to be true. For example, if you want to create a file named file1.However, starting with version, the default behavior can be overridden by setting the header x-ms-allow-trailing-dot to true in the URL request.If a file creation request includes the path \Dir1\Dir2…\File1 then the file will be created at \Dir1\Dir2\File1. The same applies to directories in the path. is being created, the dots at the end will be ignored, and a file named file1 will be created. List Directory and Files and List Handles operations will need special handling for these characters as mentioned in their respective documentation.īy default, dot (.) characters at the end of directory and file names in request URLs are ignored or left out. These characters will also be supported through the SMB protocol. Starting with version, directory and file names will support U+FFFE and U+FFFF characters through all operations.The following file names are not allowed: LPT1, LPT2, LPT3, LPT4, LPT5, LPT6, LPT7, LPT8, LPT9, COM1, COM2, COM3, COM4, COM5, COM6, COM7, COM8, COM9, PRN, AUX, NUL, CON, CLOCK$, dot character (.), and two dot characters (.).For rules governing Unicode strings in HTTP/1.1 see RFC 2616, Section 2.2: Basic Rules and RFC 3987. In addition, some ASCII or Unicode characters, like control characters ( 0x00 to 0x1F, \u0081, etc.), are also not allowed. Code points like \uE000, while valid in NTFS filenames, are not valid Unicode characters. Illegal URL path characters not allowed.The following characters are not allowed: " \ / : | * ?.Reserved URL characters must be properly escaped. ![]() File names must not end with the forward slash character (/).If provided, it will be automatically removed. Directory names cannot end with the forward slash character (/).Directory and file component names must be no more than 255 characters in length.Directory and file names are case-preserving and case-insensitive.Names are case preserving and case insensitive.Īzure Files enforces the following naming rules for directory and file names:.All other Unicode characters are legal.Control characters in range 0x00 through 0x1F, inclusive, are illegal in a share name.The following characters are illegal in a share name: \ / : ¦ + =, * ? ".A share name must be no more than 80 characters in length.Container names must be 3 to 63 characters long.All letters in a container name must be lowercase.Every hyphen/minus (-) character must be immediately preceded and followed by a letter or number consecutive hyphens aren't permitted in container names.Container names must start with a letter or number, and can contain only letters, numbers, and the hyphen/minus (-) character.A container name must be a valid DNS name.The following table compares the naming restrictions for Azure Files and Azure Blob storage: Naming and Referencing Containers, Blobs, and Metadata Share names must be from 3 through 63 characters long.All letters in a share name must be lowercase.Every hyphen/minus (-) character must be immediately preceded and followed by a letter or number consecutive hyphens aren't permitted in share names.Share names must start with a letter or number, and can contain only letters, numbers, and the hyphen/minus (-) character.The naming restrictions for shares are as follows: The rules for File service share names are more restrictive than what is prescribed by the SMB protocol for SMB share names, so that the Blob and File services can share similar naming conventions for containers and shares. If you attempt to create a share, directory, or file with a name that violates naming rules, the request will fail with status code 400 (Bad Request). Every file within a given share or directory must also have a unique name within that share or directory. Within a given storage account, every share must have a unique name. The URI to reference a share, directory or file must be unique. A file is any single entity comprised of binary data, properties, and metadata. A directory contains properties and zero or more files or directories. A share contains properties, metadata, and zero or more files or directories. A storage account can contain zero or more Azure File shares. ![]()
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