Mr. Editor-in-chief Mr. Editor-in-chief • • 2 min read • 273 words • 401 views

Linux Commands Use Cases

DevOps #Linux
  1. zip & unzip. It works on Windows CMD, too
    tar -czvf 123.zip 1.sh 2.sh 3 # zip file 1.sh and file 2.sh and folder 3 into 123.zip
    mkdir 123 && mv 123.zip 123 # Create an empty directoy and move the .zip file into it
    tar -xzvf 123.zip # unzip 123.zip and extract all files and folders inside folder 123
  2. Check installed Linux kernels
    cat /etc/os-release
  3. Stop & start GUI
    sudo systemctl stop gdm
    sudo systemctl start gdm
  4. head and tail n number of lines (default is 10)
    head file -n 30
    tail file -n 5
  5. Open & close a command line prompt
    Ctrl + Alt + T
    exit
  6. About cp and mv, even scp or rsync
    cp /path/to/file /path/to/dir or cp -r /path/to/dir /path/to/another_dir These are but the basic commands to copy a file or a folder into another folder(directory). It's the same with mv, scp and rsync commands.
    In Windows, we know we can copy a file or a folder into another folder and then rename it. We can also do this in Linux but with just one step cp /path/to/file /path/to/dir/new_file_name or cp -r /path/to/dir /path/to/dir/new_dir_name. The same is also true with mv, scp and rsync commands.
  7. Find all processes that using a certain port and kill them all
    sudo netstat -tulnp | grep ':[PORT]'
    kill -9 [PID]
  8. Debug when the bluetooth can't be turned on
shell
sudo apt install git dkms
git clone https://github.com/jeremyb31/bluetooth-6.8.git
sudo dkms add ./bluetooth-6.8
sudo dkms install btusb/4.2
reboot
sudo apt remove bluetooth
sudo apt install bluetooth
sudo systemctl enable bluetooth
sudo systemctl start bluetooth
reboot
Copied to clipboard

Share this post

Related Posts

Linux Commands Cheat Sheet

Linux commands cheat sheet: comprehensive reference covering basic commands, man pages, and help options.

How to install custom fonts on Linux

Install custom fonts on Linux: fc-list command, OTF/TTF file installation, font cache updates, verification steps.

Deploy Django on Ubuntu with Caddy && Gunicorn

Django deployment on Ubuntu with Caddy and Gunicorn: Gunicorn installation, worker configuration, Caddy reverse proxy.

Add SSL Certificate for Django Deployed with Apache on Ubuntu

Add SSL certificate to Django Apache deployment: ZeroSSL free certificates, SCP file transfer, Apache SSL config.
← Back