Can display deleted files and undelete them.
Utilities to free space for deleted files, if the file system provides an undelete function, also belong to this category.
Some of the deleted files can be recovered with an undelete tool.
Even when undelete has become impossible, the data, until it has been overwritten, can be read by software that reads disk sectors directly.
He warned the other sysops that trying to undelete the article would engage their responsibility before the law.
The undelete function is only average.
