Which command is used to change the current working directory?

The command used to change the current working directory is cd. This command stands for "change directory," and it allows users to navigate the file system by specifying the target directory they want to move into. For example, using cd /home/user/Documents would change the current directory to the Documents folder within the user's home directory.

In contrast, the other commands serve different purposes. The chdir command is a system call used in programming contexts, not directly in the command line interface for changing directories. The pwd command is used to print the current working directory, providing information about where the user currently is in the file system but not for changing locations. The mv command is primarily intended for moving or renaming files and directories rather than changing the working directory.