Create a backup version of a file by renaming it.
Inserts the date-time of the most recent modification at the end of the file name, before the extension.
file.backup(name, fullpath = FALSE, keep.old = FALSE, verbose = FALSE)
name |
A character string for the name of the file. |
fullpath |
Return the full directory path to the file. Default FALSE, return only the file name. |
keep.old |
If FALSE (default), rename the file. Otherwise, keep old copy. |
verbose |
If TRUE, output warnings and list the files in the output directory when done. |
Return is the new file name that was created, using whatever path information was provided in the file's original name. However, the fullpath argument can be set to TRUE, so a path with the full directory name will be created and returned.
The name of the newly created file.
Shadi Pirhosseinloo <shadi@ku.edu> Paul Johnson <pauljohn@ku.edu>
tdir <- tempdir()
owd <- getwd()
setwd(tdir)
system("touch test.1.txt")
system("touch test.2.txt")
system("touch test.3.txt")
system("touch test.4.txt")
system("touch test.5.txt")
## note: no extension next
system("touch test.6")
list.files()
file.backup("test.1.txt")
file.backup("test.2.txt", fullpath=TRUE)
list.files()
setwd(owd)
file.backup(file.path(tdir, "test.3.txt"))
## Next should be same path because input had a full path
file.backup(file.path(tdir, "test.4.txt"), fullpath=TRUE)
file.backup(file.path(tdir, "test.5.txt"), fullpath = TRUE, verbose = TRUE)
file.backup(file.path(tdir, "test.6"))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.