Which command allows you to view help information or a manual for any other command in the system?

In Unix-like systems, the man command is used to view the help information for any command. It opens the manual for the specified command, which describes the syntax, options, and usage examples.

Example:

man ls

Will display the manual for the ls command.

You can also use the --help command after the command name to get a brief help:

ls --help

In Windows, the help command or command /? is often used to get help.