Which of the following commands can be used to display the inode number of a given file?

`inode` is a filesystem concept representing a data structure that stores information about a file or directory, not a command to display its number.

The `ls` command, when used with the `-i` option (`ls -i`), will display the inode number associated with a file or directory.

The `ln` command is used to create hard or symbolic links to files, it does not display inode numbers.

The `cp` command is used to copy files and directories, not to display their inode numbers.