啊。我好像沒有講刪除檔案餒~

• 我們來看看如果刪除檔案的時候會發生什麼事情吧!

$ ls
Helloworld.txt  README.md

$ rm Helloworld.txt && ls
README.md

• OK，我們刪除了一個檔案了嘛，那來看看狀態吧

$ git status
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
  (use "git push" to publish your local commits)

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        deleted:    Helloworld.txt

no changes added to commit (use "git add" and/or "git commit -a")

• 現在呢~Git追蹤到你刪除了一個檔案，下一步要幹嘛勒?!
• 就是跟新增檔案一樣，要使用git add，把東西給增加到暫存區(Staging Area)裡面
• 你可以把它想成，你要更改暫存區裡面的內容啦~

$ git add .

$ git commit -m "Delete Doc Helloworld"
$ git commit -m "Delete doc Helloworld"
[master 55cf8d6] Delete doc Helloworld
 1 file changed, 0 insertions(+), 0 deletions(-)
 delete mode 100644 Helloworld.txt

• 如果你覺得以上很麻煩~我教你一個更快的方法
• 一樣先回到那個狀況

$ ls
Helloworld.txt  README.md

$ git status
On branch master
Your branch is ahead of 'origin/master' by 3 commits.
  (use "git push" to publish your local commits)

nothing to commit, working tree clean

• 接下來，請使用git rm XXXXX

$ git rm Helloworld.txt
rm 'Helloworld.txt'

$ git status
On branch master
Your branch is ahead of 'origin/master' by 3 commits.
  (use "git push" to publish your local commits)

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        deleted:    Helloworld.txt

• 咦!這樣就完成了餒XD
• 快很多吧!!

跟剛剛有關係的....

• 想起來，還有一個叫做改檔名
• 如果我們今天要把檔名從Helloworld.txt 換成 Byeworld.txt
• 你可以這樣做....

$ ls
Helloworld.txt  README.md

$ mv Helloworld.txt Byeworld.txt

$ ls
Byeworld.txt  README.md

$ git status
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
  (use "git push" to publish your local commits)

Changes not staged for commit:
  (use "git add/rm <file>..." to update what will be committed)
  (use "git checkout -- <file>..." to discard changes in working directory)

        deleted:    Helloworld.txt

Untracked files:
  (use "git add <file>..." to include in what will be committed)

        Byeworld.txt

no changes added to commit (use "git add" and/or "git commit -a")

$ git add .

$ git commit -m "Del Helloworld & Add Byeworld"
[master 16e1d92] Del Helloworld & Add Byeworld
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename Helloworld.txt => Byeworld.txt (100%)

• 覺得會太麻煩嗎?
• 那我們用快點吧XD

$ ls
Helloworld.txt  README.md

$ git mv Helloworld.txt Byeworld.txt

$ git status
On branch master
Your branch is ahead of 'origin/master' by 1 commit.
  (use "git push" to publish your local commits)

Changes to be committed:
  (use "git reset HEAD <file>..." to unstage)

        renamed:    Helloworld.txt -> Byeworld.txt

$ git add .

$ git commit -m "Del Helloworld & Add Byeworld"
[master e9d6fe7] Del Helloworld & Add Byeworld
 1 file changed, 0 insertions(+), 0 deletions(-)
 rename Helloworld.txt => Byeworld.txt (100%)

• 這樣你就達到一樣的效果啦~

明天我們在繼續看別的狀況啦~