sudo rm -rf --no-preserve-root / pcaversaccio

What does the double asterisk(**) mean in the path?

There's two meaning of wildcards in paths for file collections.

* is a simple, non-recursive wildcard representing zero or more characters which you can use for paths and file names.
** is a recursive wildcard which can only be used with paths, not file names.

For examples,

/var/log/** will match all files in /var/log and all files in all child directories, recursively.
/var/log/**/*.log will match all files whose names end in .log in /var/log and all files in all child directories, recursively.
/home/*/.bashrc will match all .bashrc files in all user's home directories.

Sepolia is now on PoS

As of 2022/7/6, Sepolia has switched to PoS. The window to do some mining has closed.

Testnets after merge (original, old content from here)

It's mid 2022, Ethereum is still PoW and motoring towards merge / PoS. Surviving testnets will be Sepolia - currently PoW - and Goerli. Ropsten will be merged and then deprecated, Rinkeby and Kovan won't be merged.

I want to "get ready" for some Sepolia testing pre- and post-merge. Sepolia will not have a public validator set; testing post-merge will be limited to running applications on it. As Sepolia is PoW, I can actually go mine myself some SepplETH. Here's how.

Upgrade to at least 0.8.4

Using newer compiler versions and the optimizer gives gas optimizations and additional safety checks for free!

The advantages of versions 0.8.* over <0.8.0 are:

Safemath by default from 0.8.0 (can be more gas efficient than some library based safemath).
Low level inliner from 0.8.2, leads to cheaper runtime gas. Especially relevant when the contract has small functions. For

Add new Youtube-dl copy to DMCA repo

Fork https://github.com/github/dmca
Download latest youtube-dl source code from https://yt-dl.org/latest
Extract
```
tar -xvf youtube-dl-2020.09.20.tar.gz
```
Push code to your fork as the GitHub CEO

	// SPDX-License-Identifier: MIT
	pragma solidity ^0.8.7;

	contract SelectorsAndSignatures {
	address public s_someAddress;
	uint256 public s_amount;

	function getSelectorOne() public pure returns(bytes4 selector){
	selector = bytes4(keccak256(bytes("transfer(address,uint256)")));
	}

	// SPDX-License-Identifier: MIT
	pragma solidity 0.8.17;

	contract GasTesting {

	function testInlined(uint256 length) external view returns (uint256 gasUsed) {
	uint256 total;
	uint256 startGas = gasleft();
	for (uint256 i; i < length; i = _uncheckedInc(i)) {
	total += i;

	name: CI
	on:
	push:
	branches:
	- master
	pull_request:

	jobs:
	run-ci:
	runs-on: ubuntu-latest

	// SPDX-License-Identifier: GPL-3.0-or-later

	pragma solidity >=0.8.4;

	/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
	/// @author Solmate (https://github.com/Rari-Capital/solmate/blob/main/src/tokens/ERC20.sol)
	/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
	/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
	abstract contract ERC20 {
	/*///////////////////////////////////////////////////////////////

	// SPDX-License-Identifier: UNLICENSED
	pragma solidity ^0.8.11;

	import "./utils/Bytecode.sol";

	contract CREATE07Proxy {
	error ErrorDestroyingContract();
	error ErrorDeployingToDeterministicAddress();

	function deployDataContract(bytes memory data) external {

	// RLP encoded transaction
	const rawTxHex = '0xed8205fc843b9aca00825208944592d8f8d7b001e72cb26a73e4fa1806a51ac79d88016345785d8a000080808080'

	// using rlp package to decode values
	const rlp = require('rlp')
	const decoded = rlp.decode(rawTxHex)
	console.log(decoded)
	/*
	[ <Buffer 05 fc>,
	<Buffer 3b 9a ca 00>,