源碼在哪裡 - 何泰祥
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{%hackmd LcL4-VI0SGitSiINTuy4rA %}
[e-mail] (e = 2.71828)

Slide: http://bit.ly/2zmorzL

## grep
可以搜尋字串 (隱藏功能>二進位檔當字串搜尋)
應用:搜尋lINUX版本號
是 grep 重度使用者，過了多年還是覺得很好用

如果想要知道他為什麼這麼快? > 找源碼
去哪裡找 grep 的 source code ? > GOOGLE
哪一個才是我要找的源碼呢?

4 stages of competence
unconcious incompetence > concious incompetence > concious competence > unconcious competence

## 問自己是否了解以下資訊
Technical/Development History
* mailing list (推薦了解)

Management:方法
* source hosts
* launchpad for ubuntu
* local
* FHS
* versionmajor.minor.patchmajor.minor.patchmajor.minor.patch
* major.minor.patch
*
Domain Knowledge
* e.g. web, Application, Science, etc.

找到命名規矩對於找到目標很有幫助

indicator 放小東西的區域
applet

指令
apt - ??
dpkg

要注意名稱跟版號是否一致
automake
相依地獄!!!!
dpkg 直接打包就好

* Technical / Development History
* Firsthand
* Mailing lists
* IRC
* HipChat
* Slack
* Issue trackers
* Forums
* Journals / Papers
* Summary
* Wiki
* Tech News
* Tech Document
* White Papers
* Blogs
* Books
* Review papers
* Mangement
* Source Hosts
* Github / Bitbucket etc.
* SourceForge
* Launchpad
* Local Deployment
* FHS
* Language-specific path
* Distributed Deployment
* Auxiliary servies (e.g., Open Stack, web)
* Version
* `Major.Minor.Patch`

## DEMO

$ which grep
$ dpkg -S /bin/grep
$ apt-get source grep
$ dpkg-buildpackage -us -uc
$ ar x grep_2.25-1~16.04.1_amd64.deb
$ tar -xf data.tar.gz
$ ./bin/grep --version

###### tags: `COSCUP2019` `帶您讀源碼` `IE2102`