Thank you guys for your help. I will have a look on Text:CSV as soon as possible. The RegEx aren't the Problem. I know how to match the Strings. The Problem is that i don't know how to overwrite the line with my new line, I'll give you an example: my first thoughts were something like this: 
open FILEHANDLE, "/root/Desktop/file1.txt";

open FILEHANDLE2,">>", "/root/Desktop/file2.txt";




    while (my $line = <FILEHANDLE>) {

    $line =~ /RegEx/i;

    my $telefonnummer = $1;

    my $name = $2;



        foreach (my $line2 = <FILEHANDLE2>) {
    
        $line2 =~ /RegExp/i;
        my $name2 = "$1,$2";


        if ($name =~ /$name2/i) {
    
        $line2 = "$line2;+49$telefonnummer"; } 
}
}

[download]
I hope that it doesn't look to strange :) The Problem in this code is that i can't simply print the  $line2 = "$line2;+49$telefonnummer"; line in the file. If that Code wont work at all please tell me, if it would work with some modifications please tell me too. :D Thanks.

In reply to Re: Write in files by lolz
in thread Write in files by lolz

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