Where does mongo install on centos? I want to remove some databases and file collections as well as uninstall it all together, can anyone help?
As it inst a core package it all depends on where you told it to go when you compiled it, or where the package maintainer did.
have a look in
As for removing it; it really all depends how it was installed...
The best way to discover where an application is actually installed in a unix-like OS is to run
The config files should be at /etc/mongodb.conf In there you should see where the database files and log files are stored.