https://www.cgsecurity.org/wiki/TestDisk
https://www.cgsecurity.org/testdisk.pdf

https://www.cgsecurity.org/wiki/TestDisk_Download

https://www.cgsecurity.org/wiki/TestDisk_Step_By_Step

2021
https://www.linuxtechi.com/how-to-recover-deleted-files-in-linux/