When I run a file which is begin with "#!/usr/bin/perl -w", I get a error: "syntax error at line 153, near "=~ ?""

When I run a file which is begin with #!/usr/bin/perl -w, I get a error:

syntax error at line 153, near "=~ ?"

I try to add "#!/bin/bash", this error is not append, but I get another

error:"line 34: syntax error near unexpected token `('"

line 153 in my file:

($output_volume =~ ?^([\S]+).mnc?) && ($base_name = $1) ||  die "sharpen_volume failed: output volume does not appear to be"  ." a minc volume.\n";

line34 in my file:use MNI::Startup qw(nocputimes);