FileSystemMap
FileSystemMap[f,root]
gives an association whose keys are the names of files in root, and whose values are the results of applying f to the full names of these files.
FileSystemMap[f,root,n]
gives a nested association in which subdirectories down to level n are represented by an association.
FileSystemMap[f,root,{m,n}]
gives a nested association including files in subdirectories from level m down through n.
FileSystemMap[f,root,lev,r]
combines levels to give a nested output association with r levels.
Details and Options
- The following options can be given:
-
IncludeDirectories False whether to return f[directory] FileNameForms All include files with names of the specified forms MaxItems Infinity maximum items to include from a directory - FileNameForms will accept any forms specification allowed in the first argument of FileNames.
Examples
open all close allBasic Examples (3)
Options (3)
FileNameForms (1)
By default, all files are included:
By specifying FileNameForms->patt, function application will be restricted to only those files that match the specified pattern:
MaxItems (1)
By default, f will be applied to all files in the specified directory and subdirectories:
By specifying MaxItems -> n, f will be applied to at most n items within each directory:
IncludeDirectories (1)
By default, the function f is not applied to directories:
By specifying IncludeDirectories -> True, values for each directory will be included, using the key All:
Text
Wolfram Research (2016), FileSystemMap, Wolfram Language function, https://reference.wolfram.com/language/ref/FileSystemMap.html (updated 2019).
CMS
Wolfram Language. 2016. "FileSystemMap." Wolfram Language & System Documentation Center. Wolfram Research. Last Modified 2019. https://reference.wolfram.com/language/ref/FileSystemMap.html.
APA
Wolfram Language. (2016). FileSystemMap. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/FileSystemMap.html