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From: maart@cs.vu.nl (Maarten Litmaath)
Newsgroups: comp.unix.questions
Subject: Re^2: Regular Expression delimiters
Message-ID: <2286@fireball.cs.vu.nl>
Date: 12 Apr 89 16:16:42 GMT
References: <993@n8emr.UUCP> <6710@bsu-cs.bsu.edu> <TALE.89Apr11192859@imagine.pawl.rpi.edu> <16874@mimsy.UUCP>
Distribution: comp
Organization: V.U. Informatica, Amsterdam, the Netherlands
Lines: 30

chris@mimsy.UUCP (Chris Torek) writes:
\(I also prefer a comma as the separator: sed 's,/,\\/,g'.)

I use minus: sed 's-/-\\/-g'

\It is true that if "$ans" is "-n foo", then
\
\	echo $ans
\
\produces
\
\	foo

Let's see:
		ans=`echo x"$ans" | sed -e 's/.//' -e 's-/-\\/-g'`

(assuming BSD echo)
And now... the portable echo! No `-n', no escapes!

% cat pecho
:
# portable echo hack: don't interpret backslash escape sequences

cat << EOF
$*
EOF
%
-- 
 "If it isn't aesthetically pleasing, |Maarten Litmaath @ VU Amsterdam:
  it's probably wrong." (jim@bilpin). |maart@cs.vu.nl, mcvax!botter!maart