##install packages 
#step 1: see the version required clearly
#step 2: go to git hub and use: curl -Lo [name of the package] [link]
#step3: move the file to /usr/local/bin
#step4: check permission of the file using ls -al [file]

curl -Lo "deno.zip" "https://github.com/denoland/deno/releases/latest/download/deno-x86_64-unknown-linux-gnu.zip"