fileutils {tools} | R Documentation |
Utilities for listing files, and manipulating file paths.
file_path_as_absolute(x)
file_path_sans_ext(x)
list_files_with_exts(dir, exts, all.files = FALSE,
full.names = TRUE)
list_files_with_type(dir, type, all.files = FALSE,
full.names = TRUE, OS_subdirs = .OStype())
x |
character vector giving file paths. |
dir |
a character string with the path name to a directory. |
exts |
a character vector of possible file extensions. |
all.files |
a logical. If |
full.names |
a logical indicating whether the full paths of the files found are returned (default), or just the file names. |
type |
a character string giving the ‘type’ of the files
to be listed, as characterized by their extensions. Currently,
possible values are |
OS_subdirs |
a character vector with the names of OS-specific
subdirectories to possibly include in the listing of R code and
documentation files. By default, the value of the environment
variable R_OSTYPE, or if this is empty, the value of
|
file_path_as_absolute
turns a possibly relative file path
absolute, performing tilde expansion if necessary. Currently, only a
single existing path can be given.
file_path_sans_ext
returns the file paths without extensions.
(Only purely alphanumeric extensions are recognized.)
list_files_with_exts
returns the paths or names of the files in
directory dir
with extension matching one of the elements of
exts
. Note that by default, full paths are returned, and that
only visible files are used.
list_files_with_type
returns the paths of the files in dir
of the given ‘type’, as determined by the extensions recognized
by R. When listing R code and documentation files, files in
OS-specific subdirectories are included if present according to the
value of OS_subdirs
. Note that by default, full paths are
returned, and that only visible files are used.
file.path
,
file.info
,
list.files
dir <- file.path(R.home(), "library", "stats")
list_files_with_exts(file.path(dir, "demo"), "R")
list_files_with_type(file.path(dir, "demo"), "demo") # the same
file_path_sans_ext(list.files(file.path(R.home(), "modules")))