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From: wietse@wzv.UUCP (Wietse Venema)
Newsgroups: comp.unix.wizards
Subject: Re: Generating Octal/Hex Codes from Bourne Shell
Keywords: Bourne Shell Fortune
Message-ID: <135@wzv.UUCP>
Date: 22 Aug 88 22:10:51 GMT
References: <118@gillxp> <1054@marconi.SW.MCC.COM> <2848@quacky.mips.COM>
Reply-To: wietse@eutwc1.UUCP (Wietse Venema)
Organization: Eindhoven University of Technology, The Netherlands
Lines: 23

In article <2848@quacky.mips.COM> dce@quacky.UUCP (David Elliott) writes:
}In article <1054@marconi.SW.MCC.COM> knutson@marconi.sw.mcc.com.UUCP (Jim Knutson) writes:
}>Well, one way to do it would be to use the tr command.  For instance,
}>to repeat your examples:
}
}>		echo . | tr . '\007'	# 0x07
}
}This is a very useful trick.
}
}One thing it doesn't handle is generating a NUL.  I've tried all
}kinds of things, but have never found a way to generate a NUL

It depends on what you need the null character for. For example, 

	echo . | tr . '\200'

is usually ok for output to ttys, since ordinary tty drivers strip
the eigth bit (except when in raw mode, of course).
-- 
					Wietse Venema

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