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The standard output of dysk is a table with a default set of columns and only the "normal looking" filesystems.
You can modify it easily.
# Columns
You can run `dysk --list-cols` for the list of all columns.
## All columns
name | default | meaning
-|-|-
id | | mount point id
dev | | device id
filesystem | ✓ | filesystem
label | | label
type | ✓ | filesystem type
remote | | whether it's a remote filesystem
disk | ✓ | short tag of the underlying storage identified
used | ✓ | cumulated size of the occupied blocks
use | ✓ | graphical view of the use share
use_percent | | percentage of occupied blocks
free | ✓ | cumulated size of the available blocks
size | ✓ | size of the volume
inodesfree | | available inodes
inodesused | | inodes used
inodes | | inodes use share, graphical
inodes_use_percent | | inodes use share, in percents
inodescount | | total number of inodes in the filesystem
mount | ✓ | mounting path
## Choose columns
With the `--cols` launch argument, shortened as `-c`, you can change the displayed columns or their order.
The default set is defined for the casual usage of checking the available volumes and their filling level:
With `-c all`, you may see all available columns, but that's normally too much for convenience:
The most obvious use of the `--cols` argument is the explicit definition of the columns to display.
For example `dysk -c label+use+size+disk+mount` will show the `label`, `use`, `size`, `disk`, and `mount` columns, in that order:
All the default columns (see [table above](#columns)) can be inserted with just `default`.
Here's adding the label at the start and the device id at the end, with `dysk -c label+default+dev`:
If the `--cols` argument starts or ends with `+` or `-`, the `default` set of columns is implied.
To add the device id and the share of inodes used to the default columns, you do `dysk -c +dev+inodes`:
To preprend the `label` column before the default ones, use `dysk -c label+`:
The `-` sign removes columns.
And adding an already present column moves it to the end (there's never duplicates).
Here's removing the `fs` column and moving the `type` column to the end, with `dysk -c -fs+type`:
# Sort
With the `--sort` launch argument, shortened as `-s`, you can specify the order of displayed rows.
The argument's value must be either a column name, for example `dysk -s dev`, or a column name and a direction, for example `dysk --sort size-desc`.
The `desc` and `asc` directions can be abbreviated into `d` and `a`.
For example, sorting on the device id:
Or sorting on the remaining free space, in descending order:
# CSV
With the `--csv` argument, you can ask dysk to output the table in CSV:
```bash
dysk --csv > mounts.csv
```
You may choose the separator with the `--csv-separator` argument.
Filters, sorting, and column selection work the same than for standard tables so you may do this:
```bash
dysk --csv -f 'size>100G' -c remote+default+inodes > mounts.csv
```
which would give something like this:
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