to achieve the above you can do it using both python and javascript, but javascript is preferred as it provides an easy and better way to interact to access the DOM elements, the fact that javascript was created to DOM manipulation , makes it more suitable for your use case,

refer this link

here i have already answered the question, read the question and explore the javascript code provided in the question and how to execute it

to execute it copy the javascript code and paste it in console of linkedIn.com and execute it, the rest things will be taken care of by the code

also, this is not how you ask questions on stackoverflow ,

before asking a question refer this link, which tells you how ask a question on stackoverflow