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Solve : egrep regular expression to remove a matching line?

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To my way of thinking,

Code: [Select]EGREP -x -e '(.*errorlog.txt.*){0}' dir.txt
should remove a line containing "errorlog.txt" (anywhere in the line) from the INPUT file. But it is not so. If fact, it matches only the line containing "errorlog.txt".

Can I utilize egrep to accomplish this task, and if so, what regular expression must I USE?

THANKS in advance.


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