my $resultLdapSearch = `ldapmodify -h \Q$ldap_server\E -D "cn=Directory Manager" -w \Q$dir_mgr_pwd\E -f \Q$ldap_modify_file\E 2>&1`;

##</code><code>##

my $cmd = join ' ', map quotemeta, (
   'ldapmodify',
   -h => $ldap_server,
   -D => 'cn=Directory Manager',
   -w => $dir_mgr_pwd,
   -f => $ldap_modify_file,
);

my $resultLdapSearch = `$cmd 2>&1`;