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UNIX in a Nutshell: System V Edition

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The Bourne Shell and Korn Shell
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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:




Suppress the terminating newline (same as -n ).






Carriage return.


Tab character.



\0 nnn

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"

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