Hi All,

I have a file as below,

REM<1><2><3><4><5>
some text1
some text2
some text3
some text4
some text5
REM<1><2><3><4><5>
some text6
some text7
some text8
some text9
some text0

in which I need to cut the text above "REM<1><2><3><4><5>" (2nd one). Is it possible to do with cut/sed?

Thanks,
rozz

Hi and welcome to LQ.

Try the following:

3 members found this post helpful.

Hi Sycamorex,

Thanks a lot... It works!.
Can you please explain what the code actually does?

Thanks,
rozz

see man sed: http://linux.die.net/man/1/sed
H will append pattern space to hold space.
/^REM/h will copy lines (beginning with REM) to hold space
$ is an address, the last line
{ } is a block executed at $
g copy hold space to pattern space
p prints the current pattern space

So /^REM/h cleans up the hold space and copies the line into it (only when line begins with REM). Everything before the REM line will be lost.
H will append the actual line to the hold space
and ${g;p;} will at the end of the file copy the appended lines to the pattern space and print it

1 members found this post helpful.

Also, apart from man pages, a tutorial that is an absolute must when it comes to sed can be found here.

1 members found this post helpful.

Thank u... It is very informative.