Any python packages installing to environment error:
    sudo aptget install colour --break-system-packages

Create a Venv File:
    python -m venv iotcloud

Activate This Venv File:
    source iotcloud/bin/activate

Git command meaning:
    1. git push origin master ( pushes the local master branch to the remote repository. )
    2. git push origin main ( git push to main branch. )
    3. git remote -v ( your record of remote repositories.)

WireGuard Private key command info:
    sudo chmod go= /etc/wireguard/private.key
        info: The sudo chmod go=... command removes any permissions 
        on the file for users and groups other than the root user to 
        ensure that only it can access the private key.

    sudo cat /etc/wireguard/private.key | wg pubkey | sudo tee /etc/wireguard/public.key
        This command consists of three individual commands that 
        are chained together using the | (pipe) operator:

    1.sudo cat /etc/wireguard/private.key: this command reads the private key 
      file and outputs it to the standard output stream.
    2.wg pubkey: the second command takes the output from the first command as 
      its standard input and processes it to generate a public key.
    3.sudo tee /etc/wireguard/public.key: the final command takes the output 
      of the public key generation command and redirects it into the file named /etc/wireguard/public.key.




vs code remote ssh connecting error on raspberry pi:
    sudo rm -r .vscode* ( This command remove vs code server to RPI.)
This is linux cmd:
    rm -f ~/ .ssh/known_hosts ( warning remot host identification has changed delete old known_hosts.)


Linex System PC Full Information Command:
    /proc/cpuinfo

python strip function:
    1. your code or any input valu for example cpuinfo and whoami any tab space to your code error.
    2. use strip to illuminate the extra spaces.

Flask redirect package:
    This is a basic illustration of redirection in Flask. 
    You can redirect to any route within your Flask application using the redirect() function.
    combined with url_for() to specify the route's endpoint.

vs code shortcuts:
    Alt+up arow = move line.
    ctl+shift+enter = empty line for befor line.
    ctl+L = select one line.