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Pattern

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patternline=$(grep -n "Pattern" "/my/file" | cut -f1 -d:)
     firstcut=$(($patternline -1))

     firstpart=$(sed -n 1,"$firstcut"p "/my/file")
     secondpart=$(sed -n ''"$abspathcomment"',$p' "/my/file")

     # Indentation intentional as snippet is nested within an IF statement
     text=$(cat <<EOF

Text I want to insert with one leading and two trailing new lines


EOF
)

     echo "$firstpart$text$secondpart" > "/my/file"

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Text I want to insert with one leading and two trailing new lines


Pattern

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Text I want to insert with one leading and two trailing new linesPattern

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