node.js - NPM Installs Not Working as Intended -

sometimes run npm commands in ubuntu console, e.g.

npm install forever -g

i such feedback console , unclear me installed? list of dependencies? issue? how should proceed fixing this?

forever@0.14.1 /usr/local/lib/node_modules/forever     ├── colors@0.6.2     ├── timespan@2.3.0     ├── optimist@0.6.1 (wordwrap@0.0.3, minimist@0.0.10)     ├── nssocket@0.5.3 (eventemitter2@0.4.14, lazy@1.0.11)     ├── cliff@0.1.10 (eyes@0.1.8, colors@1.0.3)     ├── winston@0.8.3 (cycle@1.0.3, stack-trace@0.0.9, eyes@0.1.8, isstream@0.1.2, async@0.2.10, pkginfo@0.3.0)     ├── nconf@0.6.9 (ini@1.3.4, async@0.2.9, optimist@0.6.0)     ├── utile@0.2.1 (deep-equal@1.0.0, ncp@0.4.2, async@0.2.10, i@0.3.3, mkdirp@0.5.1, rimraf@2.4.0)     ├── flatiron@0.4.3 (optimist@0.6.0, director@1.2.7, prompt@0.2.14, broadway@0.3.6)     └── forever-monitor@1.5.2 (watch@0.13.0, minimatch@1.0.0, ps-tree@0.0.3, broadway@0.3.6) 

this not error message, installed fine.

output such shows other packages installed dependencies package have installed.