2 .\" Copyright (c) 1991, 1993
3 .\" The Regents of the University of California. All rights reserved.
5 .\" This code is derived from software contributed to Berkeley by
7 .\" Copyright 1989 by Kenneth Almquist
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10 .\" modification, are permitted provided that the following conditions
12 .\" 1. Redistributions of source code must retain the above copyright
13 .\" notice, this list of conditions and the following disclaimer.
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21 .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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33 .\" @(#)echo.1 8.2 (Berkeley) 5/4/95
41 .Nd produce message in a shell script
49 utility prints its arguments on the standard output, separated by spaces.
52 option is present, a newline is output following the arguments.
57 to treat the escape sequences specially, as described in the following
61 option is the default, and is provided solely for compatibility with
63 Only one of the options
69 If any of the following sequences of characters is encountered during
70 output, the sequence is not output.
71 Instead, the specified action is
73 .Bl -tag -width indent
75 A backspace character is output.
77 Subsequent output is suppressed.
78 This is normally used at the end of the
79 last argument to suppress the trailing newline that
81 would otherwise output.
85 Output a newline character.
87 Output a carriage return.
89 Output a (horizontal) tab character.
91 Output a vertical tab.
92 .It Li \e0 Ns Ar digits
93 Output the character whose value is given by zero to three digits.
94 If there are zero digits, a
101 Remember that backslash is special to the shell and needs to be escaped.
102 To output a message to standard error, say
106 The octal character escape mechanism
107 .Pq Li \e0 Ns Ar digits
109 C language mechanism.
111 There is no way to force
113 to treat its arguments literally, rather than interpreting them as
114 options and escape sequences.