My son Travis accidentally deleted a digital movie he took with his camera. He was so disappointed, so I took up the task of trying to undelete the file. If his camera’s SD card was formatted with Linux’s ext3 filesystem his file would be impossible to retrieve.
Fortunately, all digital camera cards are formatted with the tried-and-true MS-DOS vfat filesystem, which makes undeleting files trivial. I even found a Linux tool called TestDisk that can easily retrieve deleted files. In seconds, I had fetched Travis’s deleted file.
If you are a Linux-head like me and need to bring a file back from the dead, try TestDisk!