Editing Working directory (section)

==In programming languages==
<!-- can become a separate article [[chdir]], if one is willing to split -->
Most [[programming language]]s provide an [[application programming interface|interface]] to the [[file system]] functions of the operating system, including the ability to set (change) the working directory of the program.

In the [[C language]], the [[POSIX]] function '''<code>chdir()</code>''' effects the [[system call]] which changes the working directory.<ref name="OGBS"/> Its argument is a [[string data type|text string]] with a path to the new directory, either absolute or relative to the old one. Where available, it can be called by a process to set its working directory.

There are similar functions in other languages. For example, in [[Visual Basic]] it is usually spelled <code>CHDIR()</code>.

In [[Java (programming language)|Java]], the working directory can be obtained through the <code>java.nio.file.Path</code> interface, or through the <code>java.io.File</code> class. The working directory cannot be changed.<ref name="Sun"/>