Need a good Unix script that..

Christian Walther cptsalek at
Wed Mar 14 11:33:56 UTC 2007

On 14/03/07, bstitt at <bstitt at> wrote:
> Hello,
> I'm trying to write a script to delete all line that include a certain
> pattern in an output file. I sending information to one of our Security
> people and they take this data and create a spreadsheet on the
> information, I have a constant reoccurring lines within the output file
> that they do not need. I'm trying to use the sed command to remove lines
> that fits a certain pattern but it does not appear to remove anything.
> Any helpful ideas or any useful links to scripts.
You can use something like:

cat yourfile | grep -v pattern >newfile

If there are several patterns to be removed, use something like:

cat yourfile | egrep -v "(pattern1|pattern2|pattern3|...)" >newfile


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