To find out the BIOS version of your Linux system using a command line option, you can use the dmidecode command. The dmidecode command is a utility that allows you to retrieve information about your system's hardware and firmware, including the BIOS version.
To find out the BIOS version of your system using the dmidecode command, open a terminal and enter the following command:
sudo dmidecode -s bios-version
This will display the BIOS version of your system. For example, the output might look something like this:
2.20
The dmidecode command can also be used to retrieve other information about your system's hardware and firmware. For example, you can use the -t option to specify the type of information that you want to retrieve. For example, to retrieve information about the system's memory, you can use the following command:
sudo dmidecode -t memory
This will display detailed information about the system's memory, including the size, speed, and type of each memory module.
Keep in mind that the dmidecode command requires root privileges to run, so you will need to use the sudo command to execute it.