I'm trying to extract lowercase characters out of a html tag convert it to uppercase then overwrite the code to the same file. It should look something like this: 
if ( $fold =~m/.html$/)
    {
    open(FILE, $fold) || die "Cannot open File\n";
    @lines=<FILE>;
    close (FILE);
                
    foreach $lines(@lines)
        { 
        $lines=~s/http/https/g;
    #------------upper extent of HELP Here-------------               
+ 
    #convert html tags fromlower to upper
        #Whats wrong with match and extraction here !
              
               if ($lines=~m/(<+)(\/?)(.+)(>+)/)
                  {$tag=$3;
                   $tag=~tr/a-z/A-Z/;
                  }
           }
 #------------------------lower extent of help -----------
          @log=@lines;
      open(FILE,">$fold") || die "cannot open file";
      print FILE @lines;
      open(LOG,"+>>logfile.txt") || die "log file will not open!";
    print LOG @log,"\n","#------newlog---------","\n";
                close (LOG);
                close (FILE);
                
    }
        
}

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Not all code is present, some bits maybe missing from copy and paste

In reply to perl html tag editing to uppercase by perlstu

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