echo
[-n
] [string
]
Write string
to standard output; if -n is
specified, the output is not terminated by a newline.
If no string
is supplied, echo a newline.
In the Korn shell, echo is just an alias for print -.
(See also echo in Section 2.)
echo understands special escape characters,
which must be quoted (or escaped with a \)
to prevent interpretation by the shell:
Backspace.
Suppress the terminating newline (same as -n).
Formfeed.
Newline.
Carriage return.
Tab character.
Backslash.
ASCII character represented by octal number nnn
, where nnn
is 1, 2, or 3 digits and is preceded by a 0.
$echo "testing printer" | lp
$echo "Warning: ringing bell \007"