deleting lines above and below a word!

grail · 03-25-2011, 10:16 AM

RT is what has been matched whereas RS is what you are looking for, although in this instance it is the same. I just added a blank line and still got the correct output??

crts · 03-25-2011, 02:22 PM

Sorry for the confusion. I just noticed that my awk points to mawk on my current system. Hence, the funny results I got which is no output at all if I use RT and the aforementioned duplicate behavior in case of an empty last line.
Running it with gawk works perfectly.

jacky29 · 03-25-2011, 11:59 PM

thankzz every one/......the code is working!!!

jacky29 · 03-26-2011, 01:26 AM

sed ':t /<VirtualHost/,/VirtualHost>/ { /VirtualHost>/!{ $!{ N; bt } }; /lal.com/d; }' infile

can anybody explain me this code.....plz!!!

jacky29 · 03-26-2011, 01:52 AM

sed ':t /<VirtualHost/,/VirtualHost>/ { /VirtualHost>/!{ $!{ N; bt } }; /name/d; }' infile

please can anybody xplain the logic of the code!!! plzz!!

corp769 · 03-26-2011, 01:54 AM

Why did you double post? And didn't you learn to spell correctly like I asked yet?

corp769 · 03-26-2011, 02:03 AM

Nevermind about everything.... I got the following from a previous post in this thread.....

Code:

:t
/<VirtualHost/,/VirtualHost>/ { # For each line in this range
  /VirtualHost>/!{    # If not at the /VirtualHost>/ marker
    $!{               # nor the last line of the file,
      N;              # add the Next line to the pattern space
      bt
    }                 # and branch (loop back) to the :t label.
  }                   # This line matches the /VirtualHost>/ marker.
  /lal.com/d;         # If /lal.com/ matches, delete the block.
}                     # Otherwise, the block will be printed.

This explains the sed code you have been asking about. Please READ next time before you go posting new threads and posts.

And for the record, read this - http://www.grymoire.com/Unix/Sed.html
That will get you in the right direction with sed.

Cheers,

Josh