From john-at-wagoneers.com Tue Aug  6 10:30:34 2002

On Tue, 6 Aug 2002, Brian Q wrote:
>-->Is there a way i can take a text file and remove all lines with a current 
>-->string in them?
>-->I thought i saw it posted here a while back but couldn't find it in the archives
>-->Thanks
>-->Brian

here's a few ways of doing it...   :)
john

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  see the slide on global replace:
  
  http://www.wagoneers.com/UNIX/VI-EDITOR/vi-101.html
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 http://www.wagoneers.com/UNIX/SED/sed.html
 
some "sed-like" tricks from within vi: 

 insert # at beginning of lines 


:%s/.*/# &/g   - inserts a # at the beginning of every line

:15,$s/.*/# &/g   - inserts a # at the beginning of line 15, until the end of the file

:15,250s/.*/# &/g   - inserts a # from line 15 through 250.

 turn one or more blank spaces into one space

        :%s/  */ /g

 remove blank lines, or lines with only spaces or tabs

        :g/^[ t]*$/d  --> WHERE t=tab

 redo entire line adding parentheses: 

  at command line:      sed s/.*/( & )/  file > new.file
                or
         from within vi:        :%s/.*/( & )/g 


(THERE's MORE, see the link:
	http://www.wagoneers.com/UNIX/SED/sed.html )

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http://www.wagoneers.com/UNIX/FILE-TOOLS/find-grep-perl-trick.html
 tricks with find, grep and perl 

Linux example - find and grep, and perl replacement to 
   fix a spelling error.
-------------------------------------------------------
find ./ -type f -name '*.htm*' -exec grep Galations {} \;
find ./ -type f -name '*.txt' -exec grep Galations {} \;

find ./ -type f -name '*.htm*' -exec perl -pi -e 's/Galations/Galatians/g' {} \;
find ./ -type f -name '*.txt' -exec perl -pi -e 's/Galations/Galatians/g' {} \; 

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 http://www.wagoneers.com/UNIX/FIND/find-n-perl-ex.html

find and perl example


find ./ -type f -name '*.htm*' -exec perl -pi -e 's/billygraham.org\/steps.htm/billygraham.org\/spiritualhelp\/steps.asp/g' {} \;


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 http://www.wagoneers.com/UNIX/
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