Re: escape characters in sed

[Bob McGowan <bob_mcgowan@symantec.com>]

Hans du Plooy wrote:
> william pursell wrote:
> > Your version is missing the final ', so I'm guessing you
> > meant: sed 's/\\)/ /' 
> Yes, sorry, several mistakes on my part...
>
> > which will replace occurences
> > of "\)" with a single space
> Not what I had intended, I just wanted to replace ) with a space.  
> Actually I wanted to replace the ( with a space and get rid of the 
> trailing ),

So, you'd want to use:

  sed -e 's/(/ /' -e 's/)//'

Which says replace left parens with a space, right one with nothing, 
with a single run of 'sed'.

> > :  eg:
> > $ echo '2nd backslash and first paren replaced: \\))' | sed 's/\\)/ /'
> > 2nd backslash and first paren replaced: \ )
> >
> > Note that this is exactly the same as:
> > $ echo '2nd backslash and first paren replaced: \\))' | sed s/\\\\\)/\ /
> > 2nd backslash and first paren replaced: \ )
>
> Thanks, now I kinda understand why.
>
> Hans

Bob

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