Question

The output of the command $echo hello how are you is

Answer 1

A fundamental command known as echo is a fundamental command found in most operating systems.

It is frequently used in scripts, batch files, and as part of individual commands and in many other applications; anywhere you may need to output text.

A majority of command shells, including bash, ksh and csh implement echo as a built-in command.

The behavior of built-in echo commands is generally similar, but the options mostly may be different; and those commands are not documented here.