user42846: I am trying to create raw transactions according to the excellent answer of runeks here:
How to redeem a basic Tx?
But there he starts with a private key in hex format
18E14A7B6A307F426A94F8114701E7C8E774E7F9A47E2C2035DB29A206321725
and I have one in base58 given by bitcoin-cli dumpprivkey:
bitcoin-cli dumpprivkey 154G5oUywHU3pESNy4oBBpkmAGqRZiYxBk
KzRVLwCuCi2tH2PpSNZnwUqPwg6gaqXAM2LWobUurzAsNdC5JesE
How do I get it in hex in the right format?

user42846: OK, I managed to do it with the excellent bitcoin-tool by matja
https://github.com/matja/bitcoin-tool
git clone https://github.com/matja/bitcoin-tool.git
cd bitcoin-tool
make test
./bitcoin-tool --input-type private-key-wif --input-format base58check --output-type private-key --output-format hex --network bitcoin  --input "KzRVLwCuCi2tH2PpSNZnwUqPwg6gaqXAM2LWobUurzAsNdC5JesE"
which gave me 
5f92519eef7ec4e37cbcd25f9ba4a82e5acf9a8cd274d4d3aa3aa727fd7b6969
as a result.

42846: <p>I am trying to create raw transactions according to the excellent answer of runeks here:
<a href="https://bitcoin.stackexchange.com/questions/3374/how-to-redeem-a-basic-tx/5241#5241">How to redeem a basic Tx?</a></p>

<p>But there he starts with a private key in hex format
<code>18E14A7B6A307F426A94F8114701E7C8E774E7F9A47E2C2035DB29A206321725</code></p>

<p>and I have one in base58 given by bitcoin-cli dumpprivkey:</p>

<p><code>bitcoin-cli dumpprivkey 154G5oUywHU3pESNy4oBBpkmAGqRZiYxBk
KzRVLwCuCi2tH2PpSNZnwUqPwg6gaqXAM2LWobUurzAsNdC5JesE</code></p>

<p>How do I get it in hex in the right format?</p>
 42846: <p>OK, I managed to do it with the excellent bitcoin-tool by matja
<a href="https://github.com/matja/bitcoin-tool" rel="nofollow noreferrer">https://github.com/matja/bitcoin-tool</a></p>

<p><code>git clone https://github.com/matja/bitcoin-tool.git</code></p>

<p><code>cd bitcoin-tool</code></p>

<p><code>make test</code></p>

<p><code>./bitcoin-tool --input-type private-key-wif --input-format base58check --output-type private-key --output-format hex --network bitcoin  --input "KzRVLwCuCi2tH2PpSNZnwUqPwg6gaqXAM2LWobUurzAsNdC5JesE"</code></p>

<p>which gave me 
5f92519eef7ec4e37cbcd25f9ba4a82e5acf9a8cd274d4d3aa3aa727fd7b6969</p>

<p>as a result.</p>
