add wipe-modules pkg (#35)

Author: bntzio

_posts/2017-05-03-wipe-modules.md

@@ -0,0 +1,87 @@
+---
+layout: post
+title: "wipe modules"
+description: "A little agent that removes the node_modules folder of non-active projects"
+category: bash
+tags: [nodejs, utility, utils]
+---
+
+# wipe-modules
+
+> A little agent that removes the node_modules folder of non-active projects
+
+
+## Why
+
+If you're a Javascript developer, you know the `node_modules` directory holds thousands or even millions of files, resulting in taking a lot of space in your hard disk.
+
+Enter `wipe-modules`, a little agent that wipes (eats, literally) that big `node_modules` directory of non-active projects.
+
+Why in Earth would you want to have those monster-sized `node_modules` folders on inactive projects? You got your `package.json` to recreate it whenever you want, right?
+
+
+## Usage
+
+```
+$ wipe-modules --help
+
+  Usage: wipe-modules [path] [days]
+
+  Path:
+    The full path of your code directory
+
+  Days:
+    The days you want to set to mark projects as inactive
+
+  Example: wipe-modules ~/code 30
+
+  That will remove the node_modules of your ~/code projects
+  whose been inactive for 30 days or more.
+```
+
+
+## Using cron
+
+`wipe-modules` can be executed as a background job using using [cron](https://en.wikipedia.org/wiki/Cron)
+
+The default included `cron-file` file holds the following syntax:
+
+`0 11 * * * $HOME/bin/wipe-modules ~/code_dir 30`
+
+That is the crontab (cron table) file, it instructs cron to run the `wipe-modules ~/code_dir 30` script everyday at 11:00 am.
+
+Edit the `cron-file` to match your own needs, see [how to set up a crontab](https://en.wikipedia.org/wiki/Cron#Overview) for more info.
+
+Now set the `cron-file` crontab file in cron using:
+
+``
+$ crontab ~/path_to_cronfile/cron-file
+``
+
+And you're done!
+
+To check if you've successfully added your crontab type:
+
+``
+$ crontab -l
+``
+
+It should display your crontab.
+
+To edit a crontab, use `crontab -e` and to delete all crontabs use `crontab -r`.
+
+Note that `crontab -r` will destroy all your crontabs, that's why it's a good idea to keep your crontab commands in a `cron-file`.
+
+Cron is only supported in unix operating systems.
+
+
+## Links
+
+* [Source Code (Github)](https://github.com/bntzio/wipe-modules)
+* [Author: Enrique Benitez](https://bntz.io)
+* [Contact (Twitter)](https://twitter.com/bntzio)
+
+
+## License
+
+MIT © [Enrique Benitez](https://bntz.io)