It is a command line tool, just install it globally on your system and use it!
Install this tool with
npm install --g jvmt
To use it as a calculator for simple computations,
jvmt cal 3 + 2
To download a file from link,
jvmt down <file path>
To unzip you files,
jvmt unzip file.zip destination
To get random jokes,
jvmt joke
To guess you age by name,
jvmt guessmyage <your name>
To get suggestions about activities you can do while getting bored,
jvmt bored
To read a random cat fact,
jvmt catfact
if you want to read multiple cat facts enter the number of facts you want,
jvmt catfacts 4