On Fri, 20 Apr 2001, Eric Wolzak wrote:
> Hello all Unix guru's
> I got myself a problem
> I need for a weblet a function that first check if teststring is already
> inserted in a file, if not it will be inserted. This to prevent that
> reloading will cause repeated insertions.
>
> due to conversions ( Escape sequences) there can be a
> variable amount of whitespace between 2 parts of the teststring
> therefore i used \W*
>
> grep "1.2.3.4/24\W*eth0" file does function but :
>
> now i wanted to change the space in teststring to \W* to be able to
> test.
> <PROBLEM>
> cat teststring | sed 's/ /\\W*/g'
> </PROBLEM>
> this results however in 1.2.3.4W*eth0 and not in 1.2.3.4\W*eth0
> I don't succeed in inserting the escape character.
> experimenting with even more \\ :(
> Do I something wrong here, or is this a bug in the Eigerstein Sed -
> V 2.05 ?
Works for me on LRP 2.9.8 with sed v2.05.
However, if in fact "teststring" contains variable whitespace, I am not
seeing a good search string to use instead of the single space.
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