最近打算在linux系统下进行编程，所以要在ubuntu18.04系统上安装pycharm。因为第一次接触.tar.gz类型的压缩文件，所以就把自己的安装过程记录下来：

首先从官网上下载对应的压缩包，官网连接如下：

https://www.jetbrains.com/pycharm/download/#section=linux

第二步解压缩：

压缩包安装好后可以在Downloads中找到，打开一个终端，并进入到Downloads目录中

cd ~/Downloads

        用以下的命令进行解压缩：

tar -zxvf pycharm-community-2021.2.2.tar.gz

第三步把文件转移到/usr/lib目录下：

一般来说usr/lib存放的是应用软件用到的函数库文件，所以要把解压后的pycharm目录move到此目录下:

sudo mv pycharm-community-2021.2.2/ /usr/lib/

一般来说解压后的目录下会有安装的说明，按照说明文件安装：

PyCharm

INSTALLATION INSTRUCTIONS
===============================================================================

  1. Unpack the PyCharm distribution archive that you downloaded
     where you wish to install the program. We will refer to this
     location as your {installation home}.

  2. To start the application, open a console, cd into "{installation home}/bin" and type:

       ./pycharm.sh

     This will initialize various configuration files in the configuration directory:
     ~/.config/JetBrains/PyCharmCE2021.2.

  3. [OPTIONAL] Add "{installation home}/bin" to your PATH environment
     variable so that you can start PyCharm from any directory.

  4. [OPTIONAL] To adjust the value of the JVM heap size, create a file pycharm.vmoptions
     (or pycharm64.vmoptions if using a 64-bit JDK) in the configuration directory
     and set the -Xms and -Xmx parameters. To see how to do this,
     you can reference the vmoptions file under "{installation home}/bin" as a model
     but do not modify it, add your options to the new file.

  [OPTIONAL] Change the location of the "config" and "system" directories
  ------------------------------------------------------------------------------

  By default, PyCharm stores all your settings in the
  ~/.config/JetBrains/PyCharmCE2021.2 directory
  and uses ~/.local/share/JetBrains/PyCharmCE2021.2 as a data cache.
  To change the location of these directories:

  1. Open a console and cd into ~/.config/JetBrains/PyCharmCE2021.2

  2. Create a file idea.properties and set the idea.system.path and idea.config.path variables, for example:

     idea.system.path=~/custom/system
     idea.config.path=~/custom/config

  NOTE: Store the data cache ("system" directory) on a disk with at least 1 GB of free space.


Enjoy!

-PyCharm Development Team

        最后是打开并运行应用，先进入到/usr/lib/pycharm-community-2021.2.2/bin目录下，运行:

./pycharm.sh

        到此pycharm就可以顺利打开。