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Update 4_2__Interlude_Using_JQ.md

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4_2__Interlude_Using_JQ.md
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@ -384,9 +384,18 @@ And that's also a good example of why you double-check your fees: we'd intended
For more JSON magic (and if any of this isn't clear), please read the [JSON Manual](https://stedolan.github.io/jq/manual/) and the [JSON Cookbook](https://github.com/stedolan/jq/wiki/Cookbook). We'll be regularly using JQ in future examples. For more JSON magic (and if any of this isn't clear), please read the [JSON Manual](https://stedolan.github.io/jq/manual/) and the [JSON Cookbook](https://github.com/stedolan/jq/wiki/Cookbook). We'll be regularly using JQ in future examples.
### The Transaction Fee Script ## Make Some New Aliases
If you'd like to have this JQ in a script, you can use the following. JQ code can be a little unwieldly, so you should consider adding some longer and more interesting invocations to your ~/.bash_profile.
Any time you're looking through a large mass of information in a JSON object output by a `bitcoin-cli` command, consider writing an alias to strip it down to just what you want to see.
```
alias btcunspent="bitcoin-cli listunspent | jq -r '.[] | { txid: .txid, vout: .vout, amount: .amount }'"
```
## Appendix: The Transaction Fee Script
The following script runs the "Fee Calculation" from the above example.
> **WARNING:** This script has not been robustly checked. If you are going to use it to verify real transaction fees you should only do it as a triple-check after you've already done all the math yourself. > **WARNING:** This script has not been robustly checked. If you are going to use it to verify real transaction fees you should only do it as a triple-check after you've already done all the math yourself.
@ -415,14 +424,8 @@ You can then run the script as follows:
$ ./txfee-calc.sh $rawtxhex $ ./txfee-calc.sh $rawtxhex
.255 .255
``` ```
You may also want to create an alias:
## Make Some New Aliases
JQ code can be a little unwieldly, so you should consider adding some longer and more interesting invocations to your ~/.bash_profile.
Any time you're looking through a large mass of information in a JSON object output by a bitcoin-cli command, consider writing an alias to strip it down to just what you want to see.
``` ```
alias btcunspent="bitcoin-cli listunspent | jq -r '.[] | { txid: .txid, vout: .vout, amount: .amount }'"
alias btctxfee="~/txfee-calc.sh" alias btctxfee="~/txfee-calc.sh"
``` ```