启动关闭mongod
/usr/local/mongodb/bin/mongod --dbpath=/usr/local/mongodb/data --logpath=/usr/local/mongodb/logs --logappend --port=27017 --fork
/usr/local/mongodb/bin/mongod --shutdown --dbpath /usr/local/mongodb/data
/usr/local/mongodb/bin/mongod --dbpath=/usr/local/mongodb/data --logpath=/usr/local/mongodb/logs --logappend --port=27017 --fork
/usr/local/mongodb/bin/mongod --shutdown --dbpath /usr/local/mongodb/data