# Linux（Ubuntu个人常用软件安装）

#### Qv2ray

* v2ray core 

https://github.com/v2fly/v2ray-core/releases/download/v4.34.0/v2ray-linux-64.zip

* 安装qv2ray

打开terminal运行以下命令安装qv2ray

```sh
sudo snap install qv2ray
```

* 配置v2ray core

[下载](https://github.com/v2fly/v2ray-core/releases/download/v4.34.0/v2ray-linux-64.zip)并解压v2ray core 至任意位置，但不能和qv2ray执行文件在统一路径下。

双击打开qv2ray 依次点击   首选项，内核设置

#### Ubuntu安装edge

```sh
curl https://packages.microsoft.com/keys/microsoft.asc | gpg --dearmor > microsoft.gpg
sudo install -o root -g root -m 644 microsoft.gpg /etc/apt/trusted.gpg.d/
sudo sh -c 'echo "deb [arch=amd64] https://packages.microsoft.com/repos/edge stable main" > /etc/apt/sources.list.d/microsoft-edge-dev.list'
sudo rm microsoft.gpg
sudo apt update
sudo apt install microsoft-edge-dev
```

#### Ubuntu安装gitlab

```shell
wget --content-disposition https://packages.gitlab.com/gitlab/gitlab-ce/packages/ubuntu/bionic/gitlab-ce_13.6.7-ce.0_amd64.deb/download.deb
dpkg -i gitlab-ce_13.6.7-ce.0_amd64.deb
```

#### 盒盖不休眠

```shell
sudo vim /etc/systemd/logind.conf
```

其中的

#HandleLidSwitch=suspend 改成 HandleLidSwitch=ignore

之后重启服务或者执行reboot

```shell
service systemd-logind restart
```

#### 切换cmake版本

```shell
sudo gedit ~/.bashrc
```

在文件的末尾加上

```
export CMAKE_HOME=/home/sdu/sxq/tools/cmake-3.18.4-Linux-x86_64/bin
export PATH=$CMAKE_HOME:$PATH
```

CMAKE_HOME后面的路径为下载解压后的cmake的bin路径

#### 切换GCC版本

安装其他版本的gcc，其中7为版本号

```shell
sudo apt-get install -y gcc-7 g++-7
```

查看已安装的版本

```sh
ls /usr/bin/gcc*
```

版本切换

```sh
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-5 20 --slave /usr/bin/g++ g++ /usr/bin/g++-5
sudo update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-7 10 --slave /usr/bin/g++ g++ /usr/bin/g++-7
sudo update-alternatives --config gcc
```

输入数字选择版本


#### pyenv  install  报错解决

```bash
sudo apt update
sudo apt install \
    build-essential \
    curl \
    libbz2-dev \
    libffi-dev \
    liblzma-dev \
    libncursesw5-dev \
    libreadline-dev \
    libsqlite3-dev \
    libssl-dev \
    libxml2-dev \
    libxmlsec1-dev \
    llvm \
    make \
    tk-dev \
    wget \
    xz-utils \
    zlib1g-dev
```