How can I check which version of mup I'm using in meteor?

Question

How can check which mup version we are used in meteor?
I am using meteor 1.2.1 version.
mup command is showing below result but there is no command to check mup version.

Meteor Up: Production Quality Meteor Deployments

Valid Actions

init - Initialize a Meteor Up project
setup - Setup the server

deploy - Deploy app to server
reconfig - Reconfigure the server and restart

logs [-f -n] - Access logs

start - Start your app instances
stop - Stop your app instances
restart - Restart your app instances

Answer 1

You can use which mup to find out which mup you are using. Then follow the symbolic link to see where is installed, and check the content of the package.json file

e.g.

➜  ~ which mup
/home/oliver/.nvm/versions/node/v4.8.0/bin/mup
➜  ~ ls -la /home/oliver/.nvm/versions/node/v4.8.0/bin/mup
lrwxrwxrwx 1 oliver oliver 32 Jun 29 10:49 /home/oliver/.nvm/versions/node/v4.8.0/bin/mup -> ../lib/node_modules/mup/index.js
➜  ~ ls -l /home/oliver/.nvm/versions/node/v4.8.0/lib/mup 
ls: cannot access '/home/oliver/.nvm/versions/node/v4.8.0/lib/mup': No such file or directory
➜  ~ ls -l /home/oliver/.nvm/versions/node/v4.8.0/lib/node_modules/mup 
total 56
-rw-r--r--   1 oliver oliver  5659 Jun 14 17:19 CHANGELOG.md
-rw-r--r--   1 oliver oliver  3135 Jun 14 13:21 CONTRIBUTING.md
drwxr-xr-x   8 oliver oliver  4096 Jun 29 10:49 docs
-rwxr-xr-x   1 oliver oliver    65 Mar 11 02:16 index.js
drwxr-xr-x   4 oliver oliver  4096 Jun 29 10:49 lib
drwxr-xr-x 171 oliver oliver  4096 Jun 29 10:49 node_modules
-rw-r--r--   1 oliver oliver  3972 Jun 29 10:49 package.json
-rw-r--r--   1 oliver oliver 24283 Jun 14 13:21 README.md
➜  ~ grep _id  /home/oliver/.nvm/versions/node/v4.8.0/lib/node_modules/mup/package.json
  "_id": "[email protected]",
➜  ~