true

The command line tool true is a utility found on Unix-like operating systems. It is a simple command that does nothing and always exits successfully with a status code of 0. The purpose of the true command is to provide a placeholder or a no-op operation. It is often used in scripting or command pipelines where an action is required, but no specific operation needs to be executed. Since it always returns a success status, it is commonly used to build correct syntax in shell scripts without actually executing any meaningful code. This tool serves as a way to prevent any syntax errors or command failures in a script. The true command can also be used in combination with shell control structures like the if statement, where it acts as a true condition. By convention, the true command usually has no output, but some versions may log a message indicating that it does nothing.