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help please: apply REGEX to multiple lines?

hi friends! happy new year!

i never manage to do a regex includeing multiple lines, does anyone has an idea about that?

imagin you have a file




and you want to turn it into just


but without useing grep next line/line before

it needs to be something like:

sed -i "s#a\n(b\n)c\n#$1#g" file (which does not work)

thanks a lot


  • benben Posts: 135
    why not cat or grep ?
    grep with regexp are easy ? is there a reason to avoid it ?
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