Files and directories can be uniquely identified using their path names. Path names specify where files and directories are located. When specifying path names, you can either use an absolute or relative path.
An absolute path is the complete path name of a file or a directory. It starts with the root directory up to the parent directory where another directory of the file is contained. An example of an absolute path is C:\Program Files\Tutorials\Sample.txt. In case of websites, an example of an absolute path specifies the domain name such as sample.html.
Relative path doesn’t require you to specify the root directory. You can simply specify a name of another directory or file to search for it on the same directory where the program that calls it resides. For example, if you are in the C:\ directory and you specify “Sample.txt” as a relative path, then you are actually calling C:\Sample.txt. If for example you give “Program Files/Sample.txt” while the program calling it is in the C:\ directory, then you will be calling C:\.
In the following lessons, we will be using string verbatims when specifying a path. This is to avoid using double backslash which could make our paths less natural to look at. For example, for specifying C:\Program Files\Tutorials\Sample.txt, the string should look like this:
If string verbatim is not used, it should look like this:
The next lessons discuss the different classes of the System.IO namespace that can be used to create, delete, copy, and move files and directories and many more.