To see a list of all the packages that are installed on Ubuntu Linux, you can use the dpkg command with the -l option. This command will list all the installed packages on your system, along with their names, versions, and descriptions.
To use the dpkg command, open a terminal window and run the following command:
dpkg -l
This will list all the installed packages on your system, along with their names, versions, and descriptions. The dpkg command will also show a summary of the number of packages that are installed, as well as the number of packages that are not installed.
If you want to see only the names of the installed packages, you can use the grep command to filter the output of the dpkg command. For example, the following command will show only the names of the installed packages:
dpkg -l | grep ^ii | awk '{print $2}'
This will display a list of the installed package names, one per line. You can also use other options with the grep and awk commands to further filter and format the output of the dpkg command.
By using the dpkg command, you can easily see a list of all the packages that are installed on Ubuntu Linux. This can be useful for checking the installed packages on your system, and for managing and updating your installed packages.