学习笔记《composer》

$ composer update失败

命令行键入 composer update出现如下提示，

Cloning failed using an ssh key for authentication, enter your GitHub credentials to access private repos
Head to https://github.com/settings/tokens/new?scopes=repo&description=Composer+on+userName.local+2016-10-18+0247
to retrieve a token. It will be stored in "/Users/*/.composer/auth.json" for future use by Composer.
Token (hidden):

额，此处是懵逼的，不知道是要什么Token，于是乎abort

No token given, aborting.
You can also add it manually later by using "composer config github-oauth.github.com <token>"

万能的google上找到解决方法

First you will want to cd into your .ssh directory. Open up the terminal and run:
    cd ~/.ssh && ssh-keygen
Next you need to copy this to your clipboard.
    On OS X run: cat id_rsa.pub | pbcopy
    On Linux run: cat id_rsa.pub | xclip
    On Windows (via Cygwin/Git Bash) run: cat id_rsa.pub | clip
Add your key to your account via the website.

首先命令行进入.ssh文件夹回车，

Generating public/private rsa key pair.
Enter file in which to save the key (/Users/*/.ssh/id_rsa):

继续回车下一步，

Enter passphrase (empty for no passphrase):
Enter same passphrase again:
Your identification has been saved in /Users/*/.ssh/id_rsa.
Your public key has been saved in /Users/*/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:wkJpOuONPPBRUJp***********CDYXhzgFvMHoiMJkY user@user.local
The key's randomart image is:
+---[RSA 2048]----+
|.E.o+=.=.o o.    |
|oooBo+B + o      |
|+ o O= o .       |
|   =ooB o        |
|. = .ooBS.       |
| = * ...+        |
|  * .    .       |
|   .             |
|                 |
+----[SHA256]-----+

然后回车，会生成文件id_rsa.pub，然后vi id_rsa.pub复制得到token。