Write arguments to the standard output.
Display the ARGs, separated by a single space character and followed by a
newline, on the standard output.
Options:
-n
[tab]do not append a newline
-e
[tab]enable interpretation of the following backslash escapes
-E
[tab]explicitly suppress interpretation of backslash escapes
`echo' interprets the following backslash-escaped characters:
\a
[tab]alert (bell)
\b
[tab]backspace
\c
[tab]suppress further output
\e
[tab]escape character
\E
[tab]escape character
\f
[tab]form feed
\n
[tab]new line
\r
[tab]carriage return
\t
[tab]horizontal tab
\v
[tab]vertical tab
\\
[tab]backslash
\0nnn
[tab]the character whose ASCII code is NNN (octal). NNN can be
[tab]0 to 3 octal digits
\xHH
[tab]the eight-bit character whose value is HH (hexadecimal). HH
[tab]can be one or two hex digits
Exit Status:
Returns success unless a write error occurs.
