Windows dos中用impdp导入数据库：
impdp "sys/password@ip:1521/sidname as sysdba" directory=dbdir dumpfile="full.dmp" full=y
就可以成功导入一个完整的数据库，
可以linuxshell中，却非要对双引号加上转意！！如下
impdp \"sys/password@ip:1521/sidname as sysdba\" directory=dbdir dumpfile="full.dmp" full=y