I'm running the latest El Capitan beta, and I went ahead with the normal tutorial and ran:
npm install particle-cli
Now I can't seem to find 'particle' in my PATH. Just to help a bit, here is some output:
FlightyPro:~ tmcarr$ echo $PATH
/usr/local/bin:/usr/bin:/bin:/usr/sbin:/sbin:/usr/local/go/bin:/usr/local/opt/go/libexec/bin:/Users/tmcarr/go/bin
FlightyPro:~ tmcarr$ npm remove particle-cli
unbuild particle-cli@1.6.9
FlightyPro:~ tmcarr$ npm -v
2.11.3
FlightyPro:~ tmcarr$ npm install particle-cli
npm WARN engine particle-cli@1.6.9: wanted: {"node":"^0.10.0"} (current: {"node":"0.12.7","npm":"2.11.3"})
> serialport@1.7.4 install /Users/tmcarr/node_modules/particle-cli/node_modules/serialport
> node-pre-gyp install --fallback-to-build
[serialport] Success: "/Users/tmcarr/node_modules/particle-cli/node_modules/serialport/build/serialport/v1.7.4/Release/node-v14-darwin-x64/serialport.node" is installed via remote
particle-cli@1.6.9 node_modules/particle-cli
├── cli-spinner@0.2.1
├── xtend@4.0.0
├── node-wifiscanner2@1.0.0
├── when@3.7.3
├── hogan.js@2.0.0
├── lodash@3.10.1
├── chalk@1.1.1 (supports-color@2.0.0, escape-string-regexp@1.0.3, ansi-styles@2.1.0, strip-ansi@3.0.0, has-ansi@2.0.0)
├── cli-table@0.3.1 (colors@1.0.3)
├── moment@2.10.6
├── glob@4.5.3 (inherits@2.0.1, inflight@1.0.4, once@1.3.2, minimatch@2.0.10)
├── inquirer@0.8.5 (figures@1.3.5, ansi-regex@1.1.1, cli-width@1.0.1, through@2.3.8, readline2@0.1.1, rx@2.5.3)
├── request@2.61.0 (aws-sign2@0.5.0, forever-agent@0.6.1, caseless@0.11.0, stringstream@0.0.4, oauth-sign@0.8.0, tunnel-agent@0.4.1, isstream@0.1.2, json-stringify-safe@5.0.1, extend@3.0.0, node-uuid@1.4.3, qs@4.0.0, tough-cookie@2.0.0, combined-stream@1.0.5, form-data@1.0.0-rc3, mime-types@2.1.5, http-signature@0.11.0, hawk@3.1.0, bl@1.0.0, har-validator@1.8.0)
├── softap-setup@1.1.4 (node-rsa@0.2.25, nconf@0.7.2)
└── serialport@1.7.4 (bindings@1.2.1, sf@0.1.7, async@0.9.0, nan@1.8.4, debug@2.2.0, optimist@0.6.1)