A few things to keep in mind as you write more code.

• Always use strict;
• use autodie;
• When opening file handles, don't use a bare file handle. For example, use $file instead of file
• When opening file handles, use three arguments: open my $fh, '>', $filename (see this for a brief explanation)
• I strongly recommend explicitly naming your variables if you and/or your colleagues are learning perl. It can make the code much more readable; for example, compare your while loop to mine.

I quickly cleaned up the code you posted according to my suggestions so you can see them side-by-side:

#!/bin/perl5.8.6
use strict;
use warnings;
use diagnostics;
use File::Basename;

my @files = <../tryremove/*>;

#This is the destination path where the comment removed files are crea
+ted.
my $path1 = "C:/Projects/tryremove/c";

foreach my $file (@files) {
    my $filename = basename($file);
    open $file1, "<", $file;
    open $file2, ">", "$path1/$filename";

    while ( my $line = <$file1> ) {
        $line =~ s# .* report s? .* ; .* ##sx;
        print $file2 $line;
    }

    close $file1;
    close $file2;
}
[download]

Disclaimer: It's late and I'm pretty sleepy. Although I think it should be fine, test it to make sure it behaves the same as your fixed script!

- Mike