update

ubuntu/apt_source.md

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+# apt 源
+
+## ubuntu 18.04
+
+```bash
+deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted
+deb http://mirrors.aliyun.com/ubuntu/ bionic universe
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates universe
+deb http://mirrors.aliyun.com/ubuntu/ bionic multiverse
+deb http://mirrors.aliyun.com/ubuntu/ bionic-updates multiverse
+deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security universe
+deb http://mirrors.aliyun.com/ubuntu/ bionic-security multiverse
+
+```

ubuntu/synergy.md

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+# synergy
+
+```bash
+sudo apt install synergy
+sudo apt-get install sni-qt
+```

ubuntu/user.md

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+# user
+
+
+## create user
+
+```bash
+useradd git
+
+# 制定用户默认的shell
+chsh git -s /bin/bash
+
+
+# 更改权限
+chown -R git:git /home/git
+```
+
+
+
+## auth
+
+```bash
+## 只修改文件权限 -type d 为修改目录权限
+find workspace -type f -exec chmod 644 {} \;
+```