$ perl -E '
    my $x = $ARGV[0] =~ s/(`[^`]+`)/$1/eegr =~ s/\R//gr;
    say $x;
' 'DMY_`date +%d%m%Y`_MY_`date +%m%Y`_Y_`date +%Y`.log'
DMY_21122019_MY_122019_Y_2019.log