Summary of various ubuntu problems

1. Minimize on click

gsettings set org.gnome.shell.extensions.dash-to-dock click-action 'minimize'

2. Install pycharm

sudo snap install pycharm-professional --classic

ModuleNotFoundError: No module named 'distutils.core'It may be the reason why the python interpreter was not found

3. Failed to load module "canberra-gtk-module", Failed to load module "xx-gtk3-module"

sudo apt-get install libcanberra-gtk-module
sudo apt-get install xx-gtk2-module

4. Solve some problems after uninstalling python on Ubuntu###

There is only one desktop after entering the system, the solution:
Press ctrl+alt+f1 enters the console
After logging in, enter sudo apt-get install ubuntu-minimal ubuntu-standard ubuntu-desktop, press enter
Wait for the installation to end and restart, the problem is solved

5. Virtual Environment Management###

pip3 install virtualenv virtualenvwrapper(Virtual Environment Manager)
Create one in your account directory.virtualenvs folder to store virtual environments
virtualenwrapper needs to be added to environment variables

# virtualenv
export WORKON_HOME=/home/rottengeek/.virtualenvs
source /home/rottengeek/.local/bin/virtualenvwrapper.sh

//Then you can create a virtual environment
mkvirtualenv directory name
mkvirtualenv directory name-p /usr/bin/python2
Exit deactivate
Delete can be deleted directly to the directory

6. command 'sudo' is available in '/usr/bin/sudo'

First check echo$PATH
Then add the path export PATH=$PATH:/usr/bin

7. Install pip

sudo apt-get install pip
sudo apt-get install python3-pip

8. There is no password prompt for mysql5.7 installation###

1、 Enter configuration file view

sudo vi /etc/mysql/debian.cnf

display:
# Automatically generated for Debian scripts. DO NOT TOUCH![client]
host = localhost
user = debian-sys-maint
password = fPw**********22
socket =/var/run/mysqld/mysqld.sock
[ mysql_upgrade]
host = localhost
user = debian-sys-maint
password =fPw**********22
socket =/var/run/mysqld/mysqld.sock

2、 Find the user name: debian-sys-maint password: fPw**22 (random secret key)

3、 To exit, press Esc and enter ":q!"

*4、 Enter *mysql as user debian-sys-maint

mysql -u debian-sys-maint -p

5、 Enter password: Enter the password you just found

6、 After entering mysql, start to set the root user password

mysql>update mysql.user set authentication_string=PASSWORD(“123456″) where User=’root’;

Change the root password, and then appear
Query OK,1 row affected,1warning(0.00 sec)

Rows matched:1  Changed:1  Warnings:1

7、 Resolve warning issues

mysql> update mysql.user set plugin='mysql_native_password';

appear
Rows matched:4  Changed:1  Warnings:0

8、 Update all permissions and exit

mysql> flush privileges;
mysql> quit;

9、 Restart MySQL and log in

service mysql restart
mysql -u root -p

9. Install WeChat

# Download the latest version of tar.gz compressed package https://github.com/geeeeeeeeek/electronic-wechat/releases/download/V2.0/linux-x64.tar.gz
wget https://github.com/geeeeeeeeek/electronic-wechat/releases/download/V2.0/linux-x64.tar.gz
# Unzip the compressed package
sudo tar zxvf linux-x64.tar.gz
# Put the unzipped folder in/under opt
sudo mv electronic-wechat-linux-x64//opt/electronic-wechat-linux-x64
# Create a quick start command under the terminal
sudo ln -s /opt/electronic-wechat-linux-x64/electronic-wechat /usr/bin/electronic-wechat
# Quick launch icon created under Dash Home
sudo vi /usr/share/applications/electronic-wechat.desktop

# Add the following content
[ Desktop Entry]
Encoding=UTF-8
Version=1.0
Type=Application
Name=Electronic WeChat
# Put a WeChat png icon in the resources directory by yourself
Icon=/opt/electronic-wechat/resources/electronic-wechat.png
Exec=/opt/electronic-wechat-linux-x64/electronic-wechat
StartupNotify=false
StartupWMClass=electronic-wechat
OnlyShowIn=Unity;
X-UnityGenerated=true