Can I send Bitcoins without a wallet

How can I send bitcoins to someone, without having to purchase them first or set up a wallet?

I’m looking for a service that will send N bitcoins to a given address. I pay them with my credit card or paypal. I don’t wish to purchase any bitcoins myself, have a wallet, set up any kind of account, or give anyone my email address. I don’t want to know anything about bitcoins beyond my initial instruction to send N bitcoins to a given address. Does such a service exist?

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Will hashing bytes from /dev/urandom yield a secure private key?

From what I’ve read, a Bitcoin private key is a 32 byte long integer. I take this to mean that to have a valid private key, all I need is 32 random bytes and that, by extension, running

dd if=/dev/urandom bs=1 count=128 | sha256sum 

will give me a perfectly secure private key.

Is this correct or have I missed something important?

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Need help getting old bitcoin in cold storage (

I’m not the most tech savvy guy in the world. A little over a year ago I had my buddy put some coins on a USB file b/c he said it was way more secure. Now I need to get them off, but I can’t figure out what I’m doing. I use a PC and my friend had a Mac when he did everything. I see the files but when I open them it just shows me a bunch of code. What should I do?