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Update 3_3_Setting_Up_Your_Wallet.md

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3_3_Setting_Up_Your_Wallet.md
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@ -15,20 +15,7 @@ n4cqjJE6fqcmeWpftygwPoKMMDva6BpyHf
```
However, this isn't best practice. Though your address _is_ saved away in your wallet for your future use, you could easily make a mistake if you were retyping or cutting it somewhere else. And then you're telling people to send money to somewhere else (or to nowhere!). So instead we suggest a best practice, which is meant to minimize address mistakes.
[[move]]
## Best Practices: Use Variables to Capture Addresses
Instead, use your shell's built-in variables to capture your address.
```
$ unset NEW_ADDRESS_1
$ NEW_ADDRESS_1=$(bitcoin-cli getnewaddress)
```
These commands clear the NEW_ADDRESS_1 variable, then fill it with the results of the `bitcoin-cli getnewaddress` command.
You can then use your shell's `echo` command to look at your (new) address:
```
$ echo $NEW_ADDRESS_1
n4cqjJE6fqcmeWpftygwPoKMMDva6BpyHf
```
Note that this address begins with an "n" (or sometimes an "m"). This signifies that this is a testnet address.