sudo ufw allow 3000
Here is what the above code is Doing:
1. We’re installing the ufw package.
2. We’re enabling the firewall.
3. We’re allowing SSH connections.
4. We’re allowing HTTP connections.
5. We’re allowing HTTPS connections.
6. We’re allowing the port that our Node.js application is running on.
git merge –abort Here is what the above code is Doing: 1. git checkout -b – Creates a new branch and switches to it 2. git add – Adds the file to the staging area 3. git commit -m “” – Commits the file to the branch 4. git checkout – Switches to the branch…
wsl –set-version 2 Here is what the above code is Doing: 1. We are using the wsl command to set the version of the distribution to 2. 2. We are using the wsl command to set the default version of the distribution to 2. 3. We are using the wsl command to set the default…
@echo off set dirname=”” set dirname=%* set orig_dirname=%* :: remove quotes – will re-attach later. set dirname=%dirname:\”=% set dirname=%dirname:/”=% set dirname=%dirname:”=% :: restore dirnames that contained only “/” if “%dirname%”==”” set dirname=%orig_dirname:”=% :: strip trailing slash, if longer than 3 if defined dirname if NOT “%dirname:~3%”==”” ( if “%dirname:~-1%”==”\” set dirname=”%dirname:~0,-1%” if “%dirname:~-1%”==”/” set dirname=”%dirname:~0,-1%”…
sudo less /var/log/auth.log or last Here is what the above code is Doing: 1. We’re using the subprocess module to run the command “last” and store the output in the variable “output”. 2. We’re using the split() method to split the output into a list of lines. 3. We’re using the for loop to iterate…
# This will list USB devices along with usb port type (see bcdUSB field) sudo lsusb -vvv |grep -i -B5 -A5 bcdUSB # Alternatively, this gives a hierarchical view of the USB devices sudo lsusb -t # This is another way to look at the usb devices and get some more info lsblk -o model,name,fstype,size,label,mountpoint,serial,path…
$ reboot Here is what the above code is Doing: 1. We’re importing the os module, which contains the system() function. 2. We’re using the system() function to run the command ‘shutdown -r now’. 3. We’re using the system() function to run the command ‘reboot’.