Shell Programming and Scripting

Hi
I need to find files in a specified folder where are two specified lines of text and delate that lines. It looks like this"

Code:

35. ?>NL
36. <iframe>.......</iframe>NL

The problem is that "?>" is in the other lines and id should not be removed if the next line is not like "<iframe>....."

So the command has to read "?>NL<iframe>.......</iframe>NL" as one regex and remove only regexs exactly like this.

I can not find a solution for this

Are the "35. " and "36. " part of the file?
Is "?>NL" the entire line?
Is "NL" two verbatim characters "N" and "L", or the <newline> (0x0A, \n) control character?
Are you aware that removing the closing ">" you may deteriorate your tag or even total file structure?

35 and 36 are just the numbers of the lines in the editor to show that the lines are in the middle of the file. NL is "\n"

"Are you aware that removing the closing ">" you may deteriorate your tag or even total file structure?"
Yes, but only this particular one "?>" where the next line contain "<iframe....".

There are more "?>" in those php files and they have to stay.

That is why I asked:
"So the command has to read "?>NL<iframe>.......</iframe>NL" as one regex and remove only regexs exactly like this."

Try

Code:

awk '
L0      {L0 = 0
         if (/^<iframe>/) next
         print "?>"
         }
/\?>/   {L0 = 1
         next
        }
1
' file

Hi,

can you try the below one and check if this is what you wanted ?

Code:

sed -e '/<?/N;s,<?\n<iframe>.*</iframe>$,,' file

Gives output: