hey buddies, here i have write the perl code. actually this code has been worked in windows platfotm. but it does not run in linux platform.. main intension of code is "Read the directory and modify the content.  
use strict;

use Cwd;



my ($path,$dir);

my @textfiles;



if (@ARGV) {

    $path = $ARGV[0];

    $dir = ( $path )?$path:getcwd();

    opendir DIR,$dir or die "can't read '$dir' $!\n";

    @textfiles = map{ "$dir\\$_" }grep{ /\.txt$/ }readdir( DIR );

    closedir DIR;

}

else {

    opendir(DIR,'.') || die "Can't read current directory: $!\n";

    @textfiles = sort grep /\.txt$/i, readdir DIR;

    closedir DIR;

}



die "\n Didn't get TEXT files to validate.\n" if (@textfiles == 0);



print "\nChecking the TEXT Files....";



foreach my $textfiles (@textfiles) {

    

    unless(-f $textfiles and -e $textfiles) {

        print "\nInvalid. Please specify valid Input text File.\n";

    }



    print "\n\tProcessing................. $textfiles";



    open IN, $textfiles || die "Can't open the '$textfiles' for initia
+l cleanup";

    { local $/; $_ = <IN>; close IN; }



    my $tmp = $_;



    $tmp=~ s{\n{2}}{\n}gi;

    $tmp=~ s{([^-])--([^-])}{$1 – $2}gi;



    my $outfile = $textfiles;



    $outfile =~ s/\.txt/\.convtxt/g;

    $outfile =~ s/\.convtxt/\.txt/g;



    #open (OUT, ">Out-$ARGV[0]") or die "Cannot create the output file
+";

    open OUT, ">$outfile" || die "Can't create the output file:'$outfi
+le'";

    print OUT $tmp;

    close OUT;

}

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20080825 Janitored by Corion: Added formatting, code tags, as per Writeup Formatting Tips

In reply to i could not abl to get proper result belowed mntioned code.. by senthil_v

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