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Editorial Team
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Asked: 2026-06-04T16:35:35+00:00

I try to delete all lines that begin with some optional special chars followed

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I try to delete all lines that begin with some optional special chars followed by blubb:

That’s the lines I want to match:

#blubb
*blubb
-blubb
blubb

That should do it, but doesn’t work 🙁

sed "/^.?blubb$/d" -i special.conf  
sed "/^[#*-]?blubb$/d" -i special.conf

Has somebody the right solution?

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1 Answer

  1. Editorial Team

    Use this sed command:

    sed -i.old '/^[#*-]\{0,1\}blubb/d' special.conf

    OR

    sed -i.old -E '/^[#*-]?blubb/d' special.conf

    OR

    sed -i.old -r '/^[#*-]?blubb/d' special.conf
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