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With `dysk --json` (shortened in `dysk -j`) you get a JSON structure that can be used in other programs.
# JSON output
The normal output is an array of all filesystem matching the filter.
In order to make a sample fitting this site, I extracted the first filesystem with
```bash
dysk -j | jq '.[0]' > disk.json
```
Here it is:
```JSON
{
"bound": false,
"dev": {
"major": 8,
"minor": 1
},
"disk": {
"crypted": false,
"ram": false,
"removable": false,
"rotational": false,
"type": "SSD"
},
"fs": "/dev/sda1",
"fs-label": null,
"fs-type": "ext4",
"id": 26,
"mount-point": "/",
"remote": false,
"stats": {
"available": "81G",
"bavail": 19764035,
"bfree": 22790364,
"blocks": 59233748,
"bsize": 4096,
"inodes": {
"avail": 13880393,
"files": 15114240,
"free": 13880393,
"used-percent": "8%"
},
"size": "243G",
"used": "162G",
"used-percent": "67%"
},
"unreachable": false
}
```
The `disk`, `stats`, and `stats.inodes` structures, or the `fs-label`, may be `null` for some filesystems.
Note that fields may be *added* in any version.
# All filesystems
As for the table view, the JSON is by default limited to "normal" storage devices.
You can get the complete list with `dysk --json --all`.
# Pipe
The output of `dysk -j` can be piped into another program.
You can for example use [jq](https://stedolan.github.io/jq/) to filter or extract data:
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