I'm using Mac Lion. I was using mongodb version 1.4. I wanted to upgrade to 1.8.5 and I followed http://shiftcommathree.com/articles/how-to-install-mongodb-on-os-x step wise replacing each mongodb-osx-x86_64-1.4.0 by mongodb-osx-x86_64-1.8.5. Everything goes smooth. I tried:


it's ok. I can access localhost:28017 but,


shows command not found

How can I fix this?

Solution 1

You need to add the path to "mongo" to your terminal shell.

export PATH=$PATH:/usr/local/mongodb/bin

Did you do the last step with paths.d? If so, try restarting your terminals.

Do you have a good reason for using 1.8.5? The current stable is 2.0.4, and it has many useful upgrades from 1.8.x

Solution 2

For readers in 2021:

export PATH="$PATH:/usr/local/opt/[email protected]/bin"

Solution 3

You'll have to add the location of the Mongo binary to PATH.

Follow the steps below in order to make the PATH variable permanent:

  1. Open Terminal and navigate to your user directory.
  2. Run touch ~/.bash_profile and then open ~/.bash_profile.
  3. In TextEdit, add export PATH="<mongo-directory>/bin:$PATH" (Keep the quote marks - related to white spaces).
  4. Save the .bash_profile file and Quit (Command + Q) Text Edit.
  5. Run source ~/.bash_profile.
  6. Run echo $PATH and check if the you see that the Mongo binary was added.

(*) Notice that the PATH variable is now available only for the current terminal and not to processes that were already started in the session.
In order to make it available outside the current terminal - you'll have to logout and login.

Solution 4

1.Go to your [mongodb installation dir]:

cd <mongodb installation dir>

2.Type ./bin/mongo to start mongo:


Read More

Note :

If above command gives error

Failed global initialization: BadValue Invalid or no user locale set. Please ensure LANG and/or LC_ environment variables are set correctly.*

Run bellow command: Read More

export LC_ALL=C

How can find installation directory

find / -name "mongodb" 

You can also set path

export PATH=$PATH:<mongodb installation dir>/bin

Solution 5


export PATH={mongodb-install-directory}/bin:$PATH

Solution 6

You can navigate to the mongo directory using the command line and then start MongoDB with


I was facing the same problem this worked for me.

Solution 7

you need to install mongodb shell to ge the mongo command working.

Download link

Solution 8

I didn't have the right mongo command line tools installed. This from Brew worked for me though.

brew install mongodb-community

Solution 9

In Mac:

Go into Bash Profile:

vi ~/.bash_profile

Add Path of Installation of MongoDB:

export PATH=$PATH:/usr/local/opt/[email protected]4.2/bin

Reload the Bash Profile:

source ~/.bash_profile

Solution 10

just a little recommandation, if your path has a space just wrap the whole path with quote or doublequote example : C:\Program Files\MongoDB\Server\4.2 . notice the space in "Program Files"

export PATH=$PATH:"C:/Program Files/MongoDB/Server/X.X/bin"