All rights reserved.
This code is derived from software contributed to Berkeley by
Kenneth Almquist.
%sccs.include.redist.man%
@(#)echo.1 5.1 (Berkeley) 03/07/91
If any of the following sequences of characters is encountered during output, the sequence is not output. Instead, the specified action is performed: .nr i 0.6i \\$1 \c .. .i \eb A backspace character is output. .i \ec Subsequent output is suppressed. This is normally used at the end of the last argument to suppress the trailing newline that echo would otherwise output. .i \ef Output a form feed. .i \en Output a newline character. .i \er Output a carriage return. .i \et Output a (horizontal) tab character. .i \ev Output a vertical tab. .i \e0digits Output the character whose value is given by zero to three digits. If there are zero digits, a nul character is output. .i \e\e Output a backslash.
There is no way to force echo to treat its arguments literally, rather than interpreting them as options and escape sequences.