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Mathematica > Data Manipulation > Importing and Exporting > Directory >

MATHEMATICA IMPORT/EXPORT FORMAT

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Directory

File system directory hierarchy.
Can contain files and subdirectories.

Import can read files from general file directories.

Import also recognizes formats that are represented as a bundle of related files and organized in a directory structure.

When importing from a directory that constitutes a supported multifile Import format, the converter for this format will be used.

Import gives path specifications for all files in a general directory and its subdirectories.

Import returns a list of pathnames as an expression of the form .

Import imports .

Import imports the specified element from a directory.

Import imports a subelement.

Import imports multiple elements.

Because Mathematica can determine whether a path specification refers to a directory, it is normally not necessary to specify as a format in the second argument of Import.

Import or Import explicitly specifies as the Import format.

See the reference pages for full general information on Import

General Import elements:

	"Elements"	list of elements and options available in this file
	"Rules"	full list of rules for each element and option
	"Options"	list of rules for options, properties, and settings

The following can be used to select or specify individual files in a directory:

	"FileNames"	list of full pathnames for all files
	"filename"	a single file
	"filename","format"	a single file, taken to be in the specified format
	"filename","format",elem	element elem from the specified file

Import by default uses the element for directories.

Import imports .

File names can include relative or absolute directory specifications and the abbreviated string patterns supported by StringMatchQ.

Import imports an entire directory.

Import imports all JPEG files from .

"BZIP2" "GZIP" "SDTS" "TAR" "ZIP"

Importing & Exporting

Listing of All Formats

Systems & Utility Formats

Basic Examples (1)

Import and count the file names included in this installation of Mathematica:

Show the names of some example files included in Mathematica:

Import a file from a directory, specifying its name as an Import element:

Import and count the file names included in this installation of Mathematica:

Out[1]=

Show the names of some example files included in Mathematica:

Out[2]=

Import a file from a directory, specifying its name as an Import element:

Out[3]=

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