UNIX Command Line

What if If I search for "Element2.blk", the lines after the "Element2.blk" line should be deleted. Noting but excluding the Element.blk line?

@SkyWalker, do you mean this ?

$ sed '/#Element2.blk/{p;N;N;N;N;N;d;}' file.txt

Thanks.

Hey!
Yes thanks.
Well I have a file named "test.txt" in which I have the contents as


test1
test2
test3
BEGIN
test4
test5
test6
END
test7
test8
test9
BEGIN
test10
test11
END
----


Now I want to have the file modified in such a way that what ever is there in between BEGIN and END should be deleted provided BEGIN statement should exist.

Like
test1
test2
test3
BEGIN
test7
test8
test9
BEGIN


Thanks

@SkyWalker, I have this quick solution; but let me think if we can have a better one.

$ sed '/^BEGIN/,/^END/{//p;d;}' file.txt | sed '/^END/d'

o/p:

test1
test2
test3
BEGIN
test7
test8
test9
BEGIN

I have put a python solution here http://pythonstarter.blogspot.com/2009/10/python-delete-lines-between-two-pattern.html

you can modify it.

Hey Jadu! thanks a lot for your help
yes the code really helped me out.

Thanks

Very good site for sed and awk.

For this post, what modifications do i need if the START pattern is the same, and END has several patterns, and I just need to remove the lines in between?

START
test1
test2
test3
1st end pattern
line1
START
test4
test5
test6
2nd-end-pattert
line2
START
test7
test8
test9
3rd-end-pattern

Output:

START
1st end pattern
line1
START
2nd-end-pattern
line2
START
3rd-end-pattern

Thanks for the help.