user43713: Anyone know how / where to run
enum optypecode

(or some other method) to get a list of current opcodes? Like this result...

https://www.slideshare.net/gvrooyen/20140220-bitcoin/34-We_just_used_4_opcodesenum

user208: This is the list of opcodes supported by Bitcoin Core v0.14.0:
https://github.com/bitcoin/bitcoin/blob/v0.14.0/src/script/script.h#L46L187

user2306: I don't think there is a command you can run, besides looking at Bitcoin's source code. (look for enum opcodetype)
Note that a lot of the opcodes listed there

are disabled to reduce complexity, (OP_CAT)
change meanings depending on which softforks are applied, (OP_CHECKLOCKTIMEVERIFY and OP_NOP2 have the same opcode) or 
may have no meaning in a script. (OP_SMALLINTEGER)

To get a list of ones that can actually be used without making a script fail, you need to look at the code that actually evaluates scripts. (look for Bool EvalScript)
Here's a list of legal opcodes, as of time of writing:
(direct push, opcode 0x01-0x4b)
OP_PUSHDATA1
OP_PUSHDATA2
OP_PUSHDATA4
OP_0-16
OP_TRUE
OP_FALSE
OP_1NEGATE
OP_CHECKLOCKTIMEVERIFY
OP_CHECKSEQUENCEVERIFY
OP_NOP
OP_NOP1-10
OP_IF
OP_NOTIF
OP_ELSE
OP_ENDIF
OP_VERIFY
OP_RETURN
OP_TOALTSTACK
OP_FROMALTSTACK
OP_2DROP
OP_2DUP
OP_3DUP
OP_2OVER
OP_2ROT
OP_2SWAP
OP_IFDUP
OP_DEPTH
OP_DROP
OP_DUP
OP_NIP
OP_OVER
OP_PICK
OP_ROLL
OP_ROT
OP_SWAP
OP_TUCK
OP_SIZE
OP_EQUAL
OP_EQUALVERIFY
OP_NUMNOTEQUAL
OP_1ADD
OP_1SUB
OP_NEGATE
OP_ABS
OP_NOT
OP_0NOTEQUAL
OP_1ADD
OP_1SUB
OP_NEGATE
OP_ABS
OP_NOT
OP_0NOTEQUAL
OP_ADD
OP_SUB
OP_BOOLAND
OP_BOOLOR
OP_NUMEQUAL
OP_NUMEQUALVERIFY
OP_NUMNOTEQUAL
OP_LESSTHAN
OP_GREATERTHAN
OP_LESSTHANOREQUAL
OP_GREATERTHANOREQUAL
OP_MIN
OP_MAX
OP_ADD
OP_SUB
OP_BOOLAND
OP_BOOLOR
OP_NUMEQUAL
OP_NUMEQUALVERIFY
OP_NUMNOTEQUAL
OP_LESSTHAN
OP_GREATERTHAN
OP_LESSTHANOREQUAL
OP_GREATERTHANOREQUAL
OP_MIN
OP_MAX
OP_WITHIN
OP_RIPEMD160
OP_SHA1
OP_SHA256
OP_HASH160
OP_HASH256
OP_CODESEPARATOR
OP_CHECKSIG
OP_CHECKSIGVERIFY
OP_CHECKMULTISIG
OP_CHECKMULTISIGVERIFY

Bitcoin Wiki has an excellent page on this subject, if you're trying to figure out what is possible in Bitcoin script.

43713: <p>Anyone know how / where to run</p>

<pre><code>enum optypecode
</code></pre>

<p>(or some other method) to get a list of current opcodes? Like this result...
<a href="https://i.stack.imgur.com/ehk1f.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/ehk1f.jpg" alt="enter image description here"></a></p>

<p><a href="https://www.slideshare.net/gvrooyen/20140220-bitcoin/34-We_just_used_4_opcodesenum" rel="nofollow noreferrer">https://www.slideshare.net/gvrooyen/20140220-bitcoin/34-We_just_used_4_opcodesenum</a></p>
 208: <p>This is the list of opcodes supported by Bitcoin Core v0.14.0:</p>

<p><a href="https://github.com/bitcoin/bitcoin/blob/v0.14.0/src/script/script.h#L46L187" rel="nofollow noreferrer">https://github.com/bitcoin/bitcoin/blob/v0.14.0/src/script/script.h#L46L187</a></p>
 2306: <p>I don't think there is a command you can run, besides looking at <a href="https://github.com/bitcoin/bitcoin/blob/master/src/script/script.h" rel="nofollow noreferrer">Bitcoin's source code.</a> (look for <code>enum opcodetype</code>)</p>

<p>Note that a lot of the opcodes listed there</p>

<ul>
<li>are disabled to reduce complexity, (<code>OP_CAT</code>)</li>
<li>change meanings depending on which softforks are applied, (<code>OP_CHECKLOCKTIMEVERIFY</code> and <code>OP_NOP2</code> have the same opcode) or </li>
<li>may have no meaning in a script. (<code>OP_SMALLINTEGER</code>)</li>
</ul>

<p>To get a list of ones that can actually be used without making a script fail, you need to look at the code that <a href="https://github.com/bitcoin/bitcoin/blob/master/src/script/interpreter.cpp" rel="nofollow noreferrer">actually evaluates scripts</a>. (look for <code>Bool EvalScript</code>)</p>

<p>Here's a list of legal opcodes, as of time of writing:</p>

<pre><code>(direct push, opcode 0x01-0x4b)
OP_PUSHDATA1
OP_PUSHDATA2
OP_PUSHDATA4
OP_0-16
OP_TRUE
OP_FALSE
OP_1NEGATE
OP_CHECKLOCKTIMEVERIFY
OP_CHECKSEQUENCEVERIFY
OP_NOP
OP_NOP1-10
OP_IF
OP_NOTIF
OP_ELSE
OP_ENDIF
OP_VERIFY
OP_RETURN
OP_TOALTSTACK
OP_FROMALTSTACK
OP_2DROP
OP_2DUP
OP_3DUP
OP_2OVER
OP_2ROT
OP_2SWAP
OP_IFDUP
OP_DEPTH
OP_DROP
OP_DUP
OP_NIP
OP_OVER
OP_PICK
OP_ROLL
OP_ROT
OP_SWAP
OP_TUCK
OP_SIZE
OP_EQUAL
OP_EQUALVERIFY
OP_NUMNOTEQUAL
OP_1ADD
OP_1SUB
OP_NEGATE
OP_ABS
OP_NOT
OP_0NOTEQUAL
OP_1ADD
OP_1SUB
OP_NEGATE
OP_ABS
OP_NOT
OP_0NOTEQUAL
OP_ADD
OP_SUB
OP_BOOLAND
OP_BOOLOR
OP_NUMEQUAL
OP_NUMEQUALVERIFY
OP_NUMNOTEQUAL
OP_LESSTHAN
OP_GREATERTHAN
OP_LESSTHANOREQUAL
OP_GREATERTHANOREQUAL
OP_MIN
OP_MAX
OP_ADD
OP_SUB
OP_BOOLAND
OP_BOOLOR
OP_NUMEQUAL
OP_NUMEQUALVERIFY
OP_NUMNOTEQUAL
OP_LESSTHAN
OP_GREATERTHAN
OP_LESSTHANOREQUAL
OP_GREATERTHANOREQUAL
OP_MIN
OP_MAX
OP_WITHIN
OP_RIPEMD160
OP_SHA1
OP_SHA256
OP_HASH160
OP_HASH256
OP_CODESEPARATOR
OP_CHECKSIG
OP_CHECKSIGVERIFY
OP_CHECKMULTISIG
OP_CHECKMULTISIGVERIFY
</code></pre>

<p>Bitcoin Wiki has an <a href="https://en.bitcoin.it/wiki/Script" rel="nofollow noreferrer">excellent page</a> on this subject, if you're trying to figure out what is possible in Bitcoin script.</p>
