Display message on screen, writes each given STRING to standard output, with a space between each and a newline after the last one.

SYNTAX
echo [options]… [string]…

OPTIONS

“-n”
Do not output the trailing newline.

“-E”
Disable the interpretation of the following backslash-escaped characters

“-e”
Enable interpretation of the following backslash-escaped characters in each STRING:

“a” alert (bell)

“” backspace

“c” suppress trailing newline

“e” escape “f” form feed

“v” vertical tab

“\” backslash

“NNN” the character whose ASCII code is NNN (octal); if NNN is not a valid octal number, it is printed literally.

“xnnn” the character whose ASCII code is the hexadecimal value nnn (one to three digits)echo is a BASH built-in command