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I am trying to learn about dapp development, but I'm stuck in what should be the easiest step. I've looked at least 6 different "getting started" tutorials; half of them are deprecated, the other half skip entirely the setup part and go straight to the language.

What is a complete step-by-step instruction for running a "hello world" contract in a test net starting from having geth installed on an Unix environment (and already knowing how to use it on the terminal to write transactions, etc)?

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This is probably one of the best tutorials:

https://medium.com/@ConsenSys/a-101-noob-intro-to-programming-smart-contracts-on-ethereum-695d15c1dab4#.tt2ajhnr3

I'd recommend starting with truffle and testrpc (as mentioned in the article). Much easier to start out with than using the testnet.

  • Whilst this may theoretically answer the question, it would be preferable to include the essential parts of the answer here, and provide the link for reference. – Afr May 13 '16 at 7:09
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This collection of four articles by Mahesh Murthy is excellent. They use Web3 0.20.1, so it's probably best to have the 1.0 docs open at the same time. The main gotcha is that web3.eth.contract has since become web3.eth.Contract.

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