cd mongodb-linux-x86_64-2.8.0-rc2
-bash-4.1$ cd bin/
-bash-4.1$ ls
bsondump  mongo  mongod  mongodump  mongoexport  mongofiles  mongoimport  mongooplog  mongoperf  mongorestore  mongos  mongostat  mongotop
-bash-4.1$ ./mongod --version
db version v2.8.0-rc2
git version: f77869e01a6ed235695a46fad441c0dff15202f6
-bash-4.1$ ./mongo --version
MongoDB shell version: 2.8.0-rc2
-bash-4.1$ ./mongostat --version
mongostat version: 2.8.0-rc1
-bash-4.1$ ./mongorestore --version
mongorestore version: 2.8.0-rc1