File operations
File name operations
| a/b/c | a/b/c.txt | |
|---|---|---|
| FileNameSplit | {a, b, c} | {a, b, c.txt} |
| FileBaseName | c | c |
| FileExtension | txt | |
| FileNameTake | c | c.txt |
| FileNameDrop | a/b | a/b |
| DirectoryName | a/b/ | a/b/ |
FileNameSplit[file_] - split the file path into a list of path elements.
FileBaseName[file_] - return the file name.
FileExtension[file_] - return the file extension.
FileNameTake|FileNameDrop[file_] - Take|Drop for file path.
DirectoryName[file_] - return the directory path.
FileNameJoin[list_] - join the list of path elements into a file path according to the operating system.
File operations
| a/b/c | a/b/c.txt | /Downloads/test/sub1 | /Downloads/test/sub1/file1.txt | |
|---|---|---|---|---|
| FileExistsQ | False | False | True | True |
| FileType | None | None | Directory | File |
| FileFormat | $Failed | $Failed | Directory | Text |
| DirectoryQ | False | False | True | False |
| ParentDirectory | ParentDirectory["a/b/c"] | ParentDirectory["a/b/c.txt"] | /Downloads/test | ParentDirectory["/Downloads/test/sub1/file1.txt"] |
FileExistsQ[file_] - test whether a file exists.
FileType[file_] - return File|Directory or None if the file does not exist.
FileFormat[file_] - try to return the file type.
DirectoryQ[file_] - return True if the input is an existing directory, and return False if the input is not a directory or the directory does not exist.
ParentDirectory[dir_] - check existence of the directory and and return the parent directory.
CreateFile|DeleteFile|CopyFile|RenameFile[file_]
CreateDirectory|DeleteDirectory|CopyDirectory|RenameDirectory[dir_]
FileNames[forms_,dirs_,depth_] - return a list of file paths in the directories.
FileSystemMap|FileSystemScan[f_,dir_] - Map|Scan for files.
FileSystemTree[dir_] - return the file tree.
Directories
NotebookDirectory[] - current notebook directory.
$HomeDirectory - home directory.
$TemporaryDirectory - system temporary directory.
$UserBaseDirectory - directory for user-specific add-on files.
$UserBasePacletsDirectory - directory for user-specific paclet files.
$Path - the list of directories to find an external file.
Directory[] - return the working directory.
SetDirectory[dir_] - set the working directory.
ResetDirectory[] - revert to the previous working directory.