> perl -we "my $filename = qq(d:\Swalpa Development kaliri ....Sir\WorkSpace\Perl\CMD_File.txt);"
Unrecognized escape \S passed through at -e line 1.
Unrecognized escape \W passed through at -e line 1.
Unrecognized escape \P passed through at -e line 1.
Unrecognized escape \C passed through at -e line 1.