Get, display, or kill a processe tree
`npm install -g proctree`
NOTE: this works on Mac/Linux/Unix environment which has default Unix commands pgrep, ps, and kill
getProcessTree(pid)to get process tree informationgetPids(pid)to get process ids in an arrayshow(pid)to see process trees in text formattreeKill(pid)to kill all processes in the process tree
$ proctree 89982
* 32034 node index.js
* 32038 node node_modules/.bin/chromedriver --port=60397
* 32039 /Users/allen.kim/github/webtest/node_modules/chromedriver/lib/chromedriver/ch ...
* 32040 /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --disable-backgr ...
* 32045 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
* 32048 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
* 32050 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
```
var proctree = require('proctree');
proctree.getProcessTree(pid); // to get process tree object
proctree.getPidse(pid); // to get list of process ids
proctree.show(pid); // to display process tree
```
> proctree.getProcessTree(32034)
Process {
pid: '32034',
name: 'node index.js',
level: 0,
children:
[ Process {
pid: '32038',
name: 'node node_modules/.bin/chromedriver --port=60397',
level: 1,
children: [Object] } ] }
> proctree.show(32034)
* 32034 node index.js
* 32038 node node_modules/.bin/chromedriver --port=60397
* 32039 /Users/allen.kim/github/webtest/node_modules/chromedriver/lib/chromedriver/ch ...
* 32040 /Applications/Google Chrome.app/Contents/MacOS/Google Chrome --disable-backgr ...
* 32045 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
* 32048 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
* 32050 /Applications/Google Chrome.app/Contents/Versions/60.0.3112.113/Google Chrome ...
> proctree.getPids(32034)
[ [ '32034' ], [ '32038' ], [ '32039' ], [ '32040' ], [ '32045', '32048', '32050' ] ]
> proctree.treeKill(32034)
'killed 32050 32048 32045 32040 32039 32038 32034'