The command dbmaint & was used to run dbmaintin the background. However, dbmaintis terminated after logging out of the system. Which alternative dbmaintinvocation lets dbmaintcontinue to run even when the user running the program logs out?

After successfully creating a hard link called bar to the ordinary file foo, foo is deleted from the filesystem.
Which of the following describes the resulting situation?

Immediately after deleting 3 lines of text in vi and moving the cursor to a different line, which single character command will insert the deleted content below the current line?

Which of the following files exist in a standard GRUB 2 installation? (Choose two.)

What does the command mount --bind do?