File Manipulation
File manipulation through steps can be executed on files located on the same and on different disk systems. Depending on the files' location two different ways of accessing these files are provided by the respective functions:
- If the files are located on the same disk system they can be accessed by specifying their full or relative path.
- If the files are non-local files and thus need to be accessed through the network, they must be specified via URLs. The supported protocols for this mode of access are file, http, ftp and smb (Microsoft LAN Manager).
Syntax for accessing files through URL
URLs (Uniform Resource Locator) are used to find resources (files) on a network, typically the Internet, by providing an abstract identification of the resource location.
In general, URLs are written as follows: <scheme>:<scheme-specific-part>
A URL contains the name of the scheme being used ( <scheme> ), such as ftp or http , followed by a colon and then a string (the <scheme-specific-part> ) whose interpretation depends on the scheme. For more information about the general rules of forming URLs, refer to the respective RFC documents, such as RFC 1738, 1034, 1123, and so on. The following topics are the summary compiled from these RFCs: