Multi line grep using sed and specifying open/close tags

sed '/'"<opening tag>"'/,/'"<closing tag>"'/{/'"<closing tag>"'/d;p};d' "<file>"
This line does not include your closing tag in the output.
Sample Output
daveqb@localhost /tmp $
cat test
one two three
four
five
six
seven

daveqb@localhost /tmp $
sed '/'"four"'/,/'"six"'/{/'"six"'/d;p};d' "test"
four
five

1
By: DaveQB
2010-11-08 21:43:00

1 Alternatives + Submit Alt

  • Working with log files that contains variable length messages wrapped between open and close tags it may be useful to filter the messages upon a keyword. This works fine with GNU sed version 4.2 or higher, so pay attention to some unix distros (solaris, hp-ux, etc.). Linux should be ok. Show Sample Output


    2
    cat file.txt | sed -e /<opening tag>/d -e /<closing tag>/G | sed -e '/./{H;$!d;}' -e 'x;/<string to search>/!d;'
    EBAH · 2010-11-04 10:31:15 4

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What do you think?

Any thoughts on this command? Does it work on your machine? Can you do the same thing with only 14 characters?

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