What command is used to change directories in Linux?

The command used to change directories in Linux is "cd." This command stands for "change directory," and it allows users to navigate between different directories within the file system. When executed, it modifies the current working directory to the directory specified as an argument. For example, using "cd /home/user" would take you to the "user" directory located within the "home" directory.

Other commands listed such as "chdir" are more common in different operating systems or programming environments, while "dir" is primarily used to list directory contents rather than change directories. The "mv" command is used for moving or renaming files and directories, not for changing the current directory. Therefore, "cd" is the appropriate command for changing directories in a Linux environment.