Echo the STRING(s) to standard output.

-n

do not output the trailing newline

-e

enable interpretation of backslash escapes

-E

disable interpretation of backslash escapes (default)

--help

display this help and exit

--version

output version information and exit

If -e is in effect, the following sequences are recognized:

\0NNN

the character whose ASCII code is NNN (octal)

\\

backslash

\a

alert (BEL)

\b

backspace

\c

suppress trailing newline

\f

form feed

\n

new line

\r

carriage return

\t

horizontal tab

\v

vertical tab

NOTE: your shell may have its own version of echo, which usually supersedes the version described here. Please refer to your shell's documentation for details about the options it supports.

info echo

should give you access to the complete manual.