Which command would you use to change directory?

The command used to change directories in a Unix-like operating system is 'cd', which stands for "change directory." This command allows users to navigate between different directories (folders) within the file system. When you enter 'cd' followed by the name of a directory, the shell updates its current working directory to the specified one.

For instance, if you wanted to switch to a directory called 'Documents', you would type cd Documents. If you're in a nested directory and you want to move up to the parent directory, you would use cd ... The simplicity and effectiveness of the 'cd' command make it an essential part of navigating through the filesystem in Linux.

In contrast, the other commands have different functions: 'mv' is used for moving files or directories, 'cp' is for copying files or directories, and 'rm' is used for removing files or directories. None of these commands are designed to change the current working directory, making 'cd' the clear choice for this task.