Which command is used to list files in a directory with detailed information?

The command used to list files in a directory with detailed information is the variant of the ls command, often executed with the -l option to display such details. When you use ls -l, it provides a long listing format that includes information such as file permissions, number of links, owner name, group name, file size, and the timestamp of the last modification, along with the file or directory name itself.

Other commands like dir also list directory contents but are generally linked to DOS/Windows environments, and their detailed information might not always match the long listing provided by ls -l. The commands list and show do not exist as standard commands in Linux for listing directory contents. Therefore, the choice of ls is clearly the most appropriate for obtaining detailed information about files in a directory.