json rpc – How to import a descriptor into a wallet?

I am using bash, and had to remove both the spaces as well as the single quotes.

bitcoin-cli -datadir="$DATADIR" createwallet "$WALLETNAME" true true "" false true

grep "^importdescriptors" < bitcoin-core.txt | \
    cut -d ' ' -f 2- | sed 's/ //g' | cut -d "'" -f 2- | cut -d "'" -f 1 | \
    bitcoin-cli -datadir="$DATADIR" -rpcwallet="$WALLETNAME" -stdin importdescriptors

Where bitcoin-core.txt is a file that a coldcard might output from the “Advanced/Tools” menu under “Export Wallet”, “Bitcoin Core”.

# Bitcoin Core Wallet Import File

https://github.com/Coldcard/firmware/blob/master/docs/bitcoin-core-usage.md

## For wallet with master key fingerprint: X0000001

Wallet operates on blockchain: Bitcoin

## Bitcoin Core RPC

The following command can be entered after opening Window -> Console
in Bitcoin Core, or using bitcoin-cli:

importdescriptors '[{"active": true, "timestamp": "now", "range": [0, 100], "internal": false, "desc": "wpkh([x0000001/84h/0h/0h]xpubGoesHere/0/*)#abcdefgh"}, {"active": true, "timestamp": "now", "range": [0, 100], "internal": true, "desc": "wpkh([x0000001/84h/0h/0h]xpubGoesHere/1/*)#12345678"}]'

> **NOTE** If your UTXO was created before generating `importdescriptors` command, you should adjust the value of `timestamp` before executing command in bitcoin core. 
  By default it is set to `now` meaning do not rescan the blockchain. If approximate time of UTXO creation is known - adjust `timestamp` from `now` to UNIX epoch time.
  0 can be specified to scan the entire blockchain. Alternatively `rescanblockchain` command can be used after executing importdescriptors command.

### Bitcoin Core before v0.21.0 

This command can be used on older versions, but it is not as robust
and "importdescriptors" should be prefered if possible:

importmulti '[{"range": [0, 1000], "timestamp": "now", "keypool": true, "watchonly": true, "desc": "wpkh([x0000001/84h/0h/0h]xpubGoesHere/0/*)#abcdefgh", "internal": false}, {"range": [0, 1000], "timestamp": "now", "keypool": true, "watchonly": true, "desc": "wpkh([x0000001/84h/0h/0h]xpubGoesHere/1/*)#12345678", "internal": true}]'