//delete cash // systemd-resolve --statistics systemd-resolve --flush-caches
Here is what the above code is Doing:
1. We’re using the subprocess module to run the systemd-resolve command.
2. We’re using the –statistics flag to get the statistics of the DNS cache.
3. We’re using the –flush-caches flag to flush the DNS cache.
# Basic syntax: wget http://www.example.com/file.pdf Here is what the above code is Doing: 1. wget is the command 2. http://www.example.com/file.pdf is the URL of the file you want to download
$ curl -s get.sdkman.io | bash source “$HOME/.sdkman/bin/sdkman-init.sh” sdk install groovy Here is what the above code is Doing: 1. Download the SDKMAN script 2. Run the script 3. Source the script 4. Install Groovy
sudo systemctl enable gunicorn.service sudo systemctl start gunicorn.socket sudo systemctl status gunicorn.service Here is what the above code is Doing: 1. Create a new file in /etc/systemd/system/ called gunicorn.service. 2. Add the following lines to the file: [Unit] Description=Gunicorn instance to serve myproject After=network.target [Service] User=sammy Group=www-data WorkingDirectory=/home/sammy/myproject ExecStart=/home/sammy/myproject/myprojectenv/bin/gunicorn –workers 3 –bind unix:/home/sammy/myproject/myproject.sock myproject.wsgi:application [Install]…
# solution sudo sed -i -re ‘s/([a-z]{2}\.)?archive.ubuntu.com|security.ubuntu.com/old-releases.ubuntu.com/g’ /etc/apt/sources.list # then try sudo apt update Here is what the above code is Doing: 1. The first line is a comment. 2. The second line is a command to edit the file /etc/apt/sources.list. 3. The -i option tells sed to edit the file in place. 4. The…
find . -iname .DS_Store -delete -print Here is what the above code is Doing: 1. Find all files in the current directory (.) 2. Ignore case (-iname) 3. Delete all files that match the pattern .DS_Store 4. Print the name of each file that is deleted
git fetch –all git reset –hard origin/{{your branch name}} Here is what the above code is Doing: 1. git fetch –all – This will fetch all the branches from the remote repository. 2. git reset –hard origin/{{your branch name}} – This will reset your current branch to the state of the remote branch.