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## Name
dirname - get a file's containing directory path
## Synopsis
```**c++
#include <libgen.h>
char* dirname(char* path);
```
## Description
Given a file path, `dirname()` returns a path to the directory that contains the
file. `dirname()` works purely lexically, meaning it only manipulates the path
as a string, and does not check if such a file or its containing directory
actually exist.
A call to `dirname()` may reuse and modify the passed in `path` buffer. Do not
expect it to have the same value after calling `dirname()`.
## Return value
`dirname()` returns the directory path as a string. This string may be allocated
in static memory, or it may point to some part of the original `path` buffer.
Do not `free()` the returned string, and do not `free()` the original `path`
buffer while using the returned string.
## Examples
```c++
#include <AK/LogStream.h>
#include <libgen.h>
int main()
{
char path1[] = "/home/anon/ReadMe.md";
dbg() << dirname(path1); // should be "/home/anon"
char path2[] = "foo/bar/";
dbg() << dirname(path2); // should be "foo"
char path3[] = "foo";
dbg() << dirname(path3); // should be "."
char path4[] = "/";
dbg() << dirname(path4); // should be "/"
}
```
## See also
* [`basename`(3)](basename.md)
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