问题
I have a file that was deleted, but is still held open my a program. I found the inode number using lsof. How can I create a hard link back to that inode?
Any code helps, but Perl would be handy.
回答1:
Copy from /proc/pid/fd/file descriptor
Use lsof to find the pid and the file descriptor.
回答2:
on EXT filesystem you can use debugfs command to recreate the link like :
debugfs -w /dev/mapper/vg0-root -R 'link <16> myfile'
Which will create a "file" named myfile and pointing to inode 16.
来源：https://stackoverflow.com/questions/1178593/link-to-a-specific-inode