Removing lines - Part II

Hi,

I've been doing what i've been told.

Searching google for help.

I want to replace this line:
<h4 class="post-title"><a href="http://tuxvermelho.blogspot.com/2006/08/bourne-shell.html">Bourne Shell</a></h4>

for:
<!--

i do:

# sed -e 's/<h4 class="post-title"><a
href="http://tuxvermelho.blogspot.com/2006/08/bourne-shell.html">Bourne
Shell</a></h4>/<!--/' < index.html

but get an error:
sed: -e expression #1, char 42: Unknown option to `s

Can someone help me, please ?

Any help would be appreciated.

Warm Regards

:wq! Mário Gamito
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well you should escape the '/', like:
sed -e 's/<h4 class="post-title"><a href="http\:\/\/ tuxvermelho.blogspot.com\/2006\/08\/bourne-shell.html">Bourne Shell<\/ a><\/h4>/<!--/'

works for me. [1]

you could also substitute '/' with '$':
sed -e 's$<h4 class="post-title"><a href="http\:// tuxvermelho.blogspot.com/2006/08/bourne-shell.html">Bourne Shell</a></ h4>$<!--$'

then you don't need to escape anything except there would be a '$' in the text....

hth
florian
[1]: $ sed --version
GNU sed version 4.1.4
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.

Florian Klien
student of Telematics, tutor for 'Introduction to Structured
Programming' and 'Software Development Practical Exercises'
at Graz university of technology.
"When in doubt, use brute force.", Ken Thompson


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Mário,

I'll try to save you some time here. The script below should do exactly what you asked for help with. However, as you can see, sed is a ``write only'' language. If you're going to be maintaining this code, I would suggest rewriting it in something a bit more readable such as awk, or perl.

-------- START OF FILE --------
\|<h4 class="post-title"><a href="http://tuxvermelho\.blogspot\.com/2006/08/bourne-shell.html">Bourne Shell</a></h4>| b remove
: next
P
d
: remove
s|<h4 class="post-title"><a href="http://tuxvermelho\.blogspot\.com/2006/08/bourne-shell.html">Bourne Shell</a></h4>.*<p><a href="http://domain.com/2006/08/bourne-shell.html">Sáb, 14 Abr 2007 12:31:07</a></p>|| t next
N
b remove
-------- END OF FILE --------

If you want to fit the script on one line, replace the line feeds with semicolons (``;'').

Doug Knight

P.S. I would advise against making a habit of using ``$'' or any other character that has special meanings in regular expressions as a substitution delimiter, unless you enjoy driving yourself crazy when things don't work the way you expect them to.

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