為你自己學 Git (為你自己學 Git)
為你自己學 Git
人生不能重來，但 Git 可以 v1.1
關於本書
在周星馳的《大話西遊》電影裡，至尊寶拿著月光寶盒大喊一聲「波若波羅密」便可穿越時空，回到過去救他的娘子；或像動畫《多啦 A 夢》房間抽屜裡時光機，隨時可以回到過去解救世界。Git 這個工具雖然沒辦法真的讓我們可以穿越時空（有的話請一定要讓我知道，我要回到過去買大樂透），但對電腦工作者來說，它就像時光機一樣的神奇，可以讓你回到指定的時間點，或是救回不小心被刪除的檔案。
Git 看起來很容易學（事實上也不算難學），但這只是表象，實際上 Git 是一款讓人一開始覺得很容易學但卻很難精通的工具。坊間的參考書籍或網路資料大多會教大家從終端機指令來學習 Git，這讓不少有興趣想學習的新手打退堂鼓。
我也認同 Git 指令很重要，因為那是整個 Git 的基礎，所以學習在終端機視窗敲打、輸入 Git 指令是必經過程。但是如果可以搭配圖形介面工具（GUI 工具），可以讓這個學習曲線稍微緩和一些。所以本書除了 Git 指令介紹外的同時，也會使用圖形介面工具（本書使用 SourceTree）輔助說明，讓大家更容易上手。
本書在撰寫的時候，即使是很簡單的小地方，也希望可以儘量解釋清楚。希望可以不只可以教大家如何用（How），也能讓大家知道在用什麼（What），以及為什麼（Why）要這樣用。
觀念很重要
很多人，包括我自己也是，在一開始學習 Git 的時候，只覺得它就是簡單的學習 git add 跟 git commit 之類的基本操作指令罷了。但其實這就有如跟冰山一角，沈在水底下的比在浮在水面上的還多，Git 的運作方式遠比這些指令來得複雜得多。所以，如果可以建立正確的觀念，在遇到問題的時候就比較不會疑惑、不知道該用什麼指令來解決。
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