$Path

$Path
gives the default list of directories to search in attempting to find an external file.

The structure of directory and file names may differ from one computer system to another.

The setting for $Path can be overridden in specific functions using the Path option.

The directory names are specified by strings. The full file names tested are of the form ToFileName[directory, name].

On most computer systems, the following special characters can be used in directory names:

	.	the current directory
	..	the directory one level up in the hierarchy
	~	the user's home directory

Add a directory to look for files in after all of the system defaults:

Add a directory to look for files in before any of the system defaults:

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