ZIP (.zip)

Background

    Registered MIME type: application/zip
    Popular data compression and archival format.
    Used to reduce storage space and transfer times.
    Binary format.
    Can contain multiple files.
    Supports a variety of compression methods.
    Published by Phil Katz in 1989.

Import and Export

  • When importing files from a ZIP archive, the specific converter for each format will be used.
  • Import["file.zip"] returns an expression of the form {"fn1", "fn2",}, giving full path specifications for all files in "file.zip".
  • Import["file.zip",elem] imports the specified element from a ZIP file.
  • Import["file.zip","fn"] extracts "fn" from the archive and imports it.
  • Import["file.zip",{elem,suba,subb,}] imports a subelement.
  • Import["file.zip",{{elem1,elem2,}}] imports multiple elements.
  • Import["file","ZIP"] or Import["file",{"ZIP",elem,}] imports any file as a ZIP archive.
  • Export["file.zip",expr,elem] creates a ZIP archive by treating expr as specifying element elem.
  • Export["file.zip",{expr1,expr2,},{{elem1,elem2,}}] treats each expri as specifying the corresponding elemi.
  • Export["file.zip",expr,opt1->val1,] exports expr with the specified option elements taken to have the specified values.
  • Export["file.zip","fn"->expr] exports expr to a file and compresses it as a ZIP archive, inferring the file format from the file extension of "fn".
  • Export["file.zip)",{"fn1"->expr1,"fn2"->expr2,}] exports multiple expressions to a ZIP file archive.
  • Export["file.zip",elem1->expr1,elem2->expr2,,"Rules"] uses rules to specify the elements to be exported.
  • See the reference pages for full general information on Import and Export.
  • ImportString and ExportString support ZIP compression.

Elements

  • 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 ZIP archive:
  • "FileNames"list of filenames representing the contents of a ZIP archive
    "filename"a single file
    "filename","format" a single file, taken to be in the specified format
    "filename","format",elemelement elem from the specified file
  • Import by default uses the "FileNames" element for the ZIP format.
  • Import["file.zip","fn"] extracts and imports file "fn".
  • File names can include relative or absolute directory specifications and the abbreviated string patterns supported by StringMatchQ.
  • Import["file.zip","*"] imports an entire archive.
  • Import["file.zip","dir/*.jpg"] imports all JPEG files from subdirectory dir.
  • Export["file.zip","file1.gif"->expr1,"file2.txt"->expr2] creates a ZIP archive containing a GIF and a text file.
  • Export["file",{expr1,expr2},{"ZIP",{{"file1","GIF"},{"file2","Text"}}}] is equivalent to the above.

Examples

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Basic Examples  (1)

This creates a ZIP archive containing a GIF and a text file:

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Importing a ZIP archive gives the names of the files in the archive by default:

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Import all files using their default element:

In[4]:=
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Extract and import the GIF file:

In[3]:=
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Extract and import all text files:

In[3]:=
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Scope  (1)

Import Elements  (1)

See Also

"BZIP2"  "Directory"  "GZIP"  "TAR"

Introduced in 2007
(6.0)
| Updated in 2017
(11.2)