x,y |
character vectors giving file paths. |
op |
a character string specifying the test to be performed.
Unary tests (only x is used) are "-f" (existence and
not being a directory) and "-d" (existence and directory);
binary tests are "-nt" (newer than, using the modification
dates) and "-ot". |
dir |
a character string with the path name to a directory. |
exts |
a character vector of possible file extensions. |
all.files |
a logical. If FALSE (default), only visible
files are considered; if TRUE, all files are used. |
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 "code" (R code), "data" (data
sets), "demo" (demos), "docs" (R documentation), and
"vignette" (vignettes). |