To upgrade Chrome on Ubuntu/Linux from the command line, you can use the apt package manager.

First, open a terminal and run the following command to check if there are any updates available for Chrome:

sudo apt-get update If updates are available, run the following commands to upgrade Chrome

1. sudo apt-get install google-chrome-stable
2. sudo apt-get --only-upgrade install google-chrome-stable
   

This will install the latest version of Chrome and replace the currently installed version. If you want to install a specific version of Chrome, you can use the following commands:

1. sudo apt-get install google-chrome-stable=VERSION
2. sudo apt-get --only-upgrade install google-chrome-stable=VERSION
   
   Where VERSION is the version number of Chrome you want to install. Some Ubuntu version may not have chrome-stable package, in that case you can try below commands listed in below doc: https://gist.github.com/codetycon/4b4f51b746052ffd84e8103f4679ccfe