#!/usr/bin/perl
my $src = shift;
my $dst = shift;
 
print "Replace >$src< with >$dst<.\n";
 
$dst =~ s/\\n/\n/g;
$dst =~ s/\\t/\t/g;
 
foreach $file (@ARGV) {
    my $file2 = "/tmp/$file.".$$;
 
    print "replacing in File: $file...\n";
    print "$file2\n";
    open HANDLE, $file or die "$file: $!";
    while(<HANDLE>) {
        $zeile .= $_;                    # Zeile von Datei einlesen
    }
    close HANDLE;
 
    $zeile =~ s/$src/$dst/gs;
 
    open HANDLE, ">$file2";
    print HANDLE $zeile;
    close HANDLE;
    $zeile = '';
    system("mv $file2 $file");
}