Do I have to file tax return for 2018 if I didn't work at all or have an income?

I was wondering If I had to file a tax return for 2018. I didn't get a W-2 because I did not earn anything and didn't have a job at all for last year. I still do have student loans to pay off. Couple of my friends told me I don't have to if no income was earned but I wanted to double check and make sure... show more I was wondering If I had to file a tax return for 2018. I didn't get a W-2 because I did not earn anything and didn't have a job at all for last year. I still do have student loans to pay off. Couple of my friends told me I don't have to if no income was earned but I wanted to double check and make sure they are right. Don't want to get in trouble from IRS or anything.
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