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title: 'Bash array json restic snapshots and jq'
date: '2019-11-23T10:34:15-06:00'
status: publish
permalink: /bash-array-json-restic-snapshots-and-jq
author: admin
excerpt: ''
type: post
id: 1431
category:
    - restic
tag: []
post_format: []

As you know bash is not ideal with multi arrays. Frequently I find myself wanting to read something like json into bash and loop over it. There are many ways to do this including readarray etc. I found this to work best for me. Note json can have lists so I collapse those with jq\'s join. Example:

```bash

cat restic-loop-snaps.sh

!/bin/bash

function loopOverArray(){

restic snapshots --json | jq -r '.' | jq -c '.[]'| while read i; do id=$(echo $i | jq -r '.| .short_id') ctime=$(echo $i | jq -r '.| .time') hostname=$(echo $i | jq -r '.| .hostname') paths=$(echo $i | jq -r '. | .paths | join(,)') tagss=$(echo $i | jq -r '. | .tags | join(,)') printf %-10s - %-40s - %-20s - %-30s - %-20s\n $id $ctime $hostname $paths $tags done }

loopOverArray ````

Run

```bash

./restic-loop-snaps.sh

0a71b5d4 - 2019-05-31T05:03:20.655922639-05:00 - pop-os - /DATA/MyWorkDocs -
... ````