Invalid DN Syntax in Shell Script

Hi to all,

I'm trying write a script shell to simplifies the change of pass of users. Then I write

function verificaSenha(){ whoAmI=`whoami` param=`echo "ldapsearch -x -W -D "uid=$whoAmI,ou=People,dc=ifce,dc=edu,dc=br" -b "dc=ifce,dc=edu,dc=br" "(uid=$whoAmI)""` exec `echo "$param"` }

the line param=... produces a command line that when I write directly in the term it works, however in the line exec "$param" I am solicitated my LDAP pass (like in directly term) but when I type I get

ldapsearch -x -W -D "uid=inacio,ou=People,dc=ifce,dc=edu,dc=br" -b "dc=ifce,dc=edu,dc=br" "(uid=inacio)" Enter LDAP Password: ldap_bind: Invalid DN syntax (34) additional info: invalid DN

what is wrong?

Best regards!!