安装库

Eigen

把Eigen拷贝到外面，就可以直接 #include <Eigen/Dense>

sudo cp -r /usr/local/include/eigen3/Eigen /usr/local/include

直接可以编译

g++ eigen_text.cpp -o eigen_text

不需要再在CMakeLists.txt里面添加库文件

查看位置

sudo updatedb
locate eigen3

安装 git

ssh-keygen -t rsa -C "1817136760@qq.com"

Generating public/private rsa key pair.
Enter file in which to save the key (/home/kavin/.ssh/id_rsa): 
Enter passphrase (empty for no passphrase): 
Enter same passphrase again: 
Your identification has been saved in /home/kavin/.ssh/id_rsa.
Your public key has been saved in /home/kavin/.ssh/id_rsa.pub.
The key fingerprint is:
SHA256:P7HncHBT/wUO3TcCtkTmGfBohby+UKhwSwomxkMzXsQ 1817136760@qq.com
The key's randomart image is:
+---[RSA 2048]----+
|  o.    ..+O     |
| + E     oO =. . |
|+ +     .o.=..+.o|
|.B . o ..o   +.oo|
|+ o = o S o o . o|
|   . o . o = .  o|
|        . * o   .|
|         . *     |
|            .    |
+----[SHA256]-----+

cat .ssh/id_rsa.pub

ssh-rsa AAAAB... 1817136760@qq.com

ssh -T git@github.com

Hi kavinwkp! You’ve successfully authenticated, but GitHub does not provide shell access.

git config --global user.name "kavinwkp"
git config --global user.email 1817136760@qq.com

git add .
git commit -m "***"
git push -u origin master
rm -rf test.txt     # 删除本地仓库文件
git rm test.txt     # 删除远程仓库文件

代理网络连接错误

Failed to receive SOCKS4 connect request ack.

git config --global http.proxy 'socks5://127.0.0.1:1080'