In article <457.559T256T10192496geohei9@attglobal.net>,
Georges Heinesch <geohei-ml@geohei.lu> wrote:
>Hi.
>
>Possibly off-topic, but someone here should know the answer.
>
>Which grep (or egrep, fgrep) options do I have to use to extract all
>lines from a file except a lines containing a given string.
>
>    # grep "list all lines except" 'foobar'
>


% grep -v 'foobar'

"man grep" works too.

       -v, --invert-match
	     Invert the sense of matching, to select  non-matching lines.
christos