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Top Forums Shell Programming and Scripting Using arrow keys in shell scripts Post 302319738 by otheus on Tuesday 26th of May 2009 05:26:00 AM
Old 05-26-2009
The man pages say that echo is indeed a builtin:
Quote:
echo [-neE] [arg ...]
Prints its arguments (separated by spaces) followed by a newline, to standard out. The newline is suppressed if any of the arguments contain the backslash sequence \c. See print command below for a list of other backslash sequences that are recognized.
The options are provided for compatibility with BSD shell scripts: -n suppresses the trailing newline, -e enables backslash interpretation (a no-op, since this is normally done), and -E which suppresses backslash interpretation.
Further evidence:
Code:
root@sf8 # uname -a
SunOS sf8 5.10 Generic_127127-11 sun4u sparc SUNW,SPARC-Enterprise
root@sf8 # echo $0
/usr/bin/ksh
root@sf8 # type echo
echo is a shell builtin

 

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ECHO(1) 						    BSD General Commands Manual 						   ECHO(1)

NAME
echo -- write arguments to the standard output SYNOPSIS
echo [-n] [string ...] DESCRIPTION
The echo utility writes any specified operands, separated by single blank (' ') characters and followed by a newline (' ') character, to the standard output. The following option is available: -n Do not print the trailing newline character. This may also be achieved by appending 'c' to the end of the string, as is done by iBCS2 compatible systems. Note that this option as well as the effect of 'c' are implementation-defined in IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. Applications aiming for maximum portability are strongly encouraged to use printf(1) to sup- press the newline character. Some shells may provide a builtin echo command which is similar or identical to this utility. Most notably, the builtin echo in sh(1) does not accept the -n option. Consult the builtin(1) manual page. EXIT STATUS
The echo utility exits 0 on success, and >0 if an error occurs. SEE ALSO
builtin(1), csh(1), printf(1), sh(1) STANDARDS
The echo utility conforms to IEEE Std 1003.1-2001 (``POSIX.1'') as amended by Cor. 1-2002. BSD
April 12, 2003 BSD
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