R.utils: popBackupFile – R documentation

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popBackupFile

Drops a backup suffix from the backup pathname

Drops a backup suffix from the backup pathname and, by default, restores an existing backup file accordingly by renaming it.

## Default S3 method:
popBackupFile(filename, path=NULL, suffix=".bak", isFile=TRUE,
  onMissing=c("ignore", "error"), drop=TRUE, ..., verbose=FALSE)

`filename`	The filename of the backup file.
`path`	The path of the file.
`suffix`	The suffix of the filename to be dropped.
`isFile`	If `TRUE`, the backup file must exist and will be renamed. If `FALSE`, it is only the pathname string that will be modified. For details, see below.
`onMissing`	A `character` string specifying what to do if the backup file does not exist.
`drop`	If `TRUE`, the backup file will be dropped in case the original file already exists or was successfully restored.
`...`	Not used.
`verbose`	A `logical` or `Verbose`.

Returns the pathname with the backup suffix dropped.

Henrik Bengtsson