x df - Disk Free Space Viewer

Enhanced df command combining df and mount output with multiple formats.

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Quick Start

# Interactive disk usage viewer (default in TTY)
x df

# TSV format output (default when piped)
x df | cat

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Features

• Joint output: Combines df and mount command information
• Multi-format: TSV, CSV, TUI application, raw
• Cross-platform: Linux, macOS, Windows support
• Auto-detection: Interactive mode in TTY, TSV when piped

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Output Fields

Linux / Windows

Field	Description	Example
Filesystem	Device path	/dev/sda1
Type	Filesystem type	ext4, ntfs
Size	Total size	500G
Used	Used space	200G
Avail	Available space	300G
Use%	Usage percentage	40%
Mounted_path	Mount point	/, /home
Mounted_attr	Mount attributes	rw,relatime

macOS (additional fields)

Field	Description	Example
Capacity	Capacity percentage	40%
iused	Used inodes	1000000
ifree	Free inodes	9000000
%iused	Inode usage %	10%

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Commands

Command	Description
x df	Auto mode: TTY→interactive, pipe→TSV
x df --app	Interactive TUI view
x df --csv	CSV format output
x df --tsv	TSV format output
x df --raw	Raw system command output
x df --numeric	Display sizes in pure numeric form

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Examples

Basic Usage

# Interactive view (TTY)
x df

# TSV format
x df --tsv

# CSV format
x df --csv

Filter and Process

# Find large filesystems (>100GB)
x df --tsv | awk -F'\t' 'NR>1 && $3 > 100'

# Check specific mount point
x df --tsv | grep "/home"

# Get usage percentages only
x df --tsv | awk -F'\t' '{print $1, $6}'

Data Processing

# Convert to JSON via csv
x df --csv | x csv tojson

# SQL-like query on disk usage
x df --csv | x csv sql "SELECT * WHERE Use% > 80"

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Platform Notes

Linux

• Uses df and /proc/mounts or mount command
• Full feature support

macOS

• Uses df and mount command
• Additional inode information (iused, ifree, %iused)

Windows

• Uses wmic or PowerShell Get-Volume for disk info
• Full feature support

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Comparison with Native df

Command	Output
df -h	Basic disk usage
mount	Mount information
x df	Combined view with filesystem type and mount attributes

# Native df
$ df -h
Filesystem      Size  Used Avail Use% Mounted on
/dev/sda1       500G  200G  300G  40% /

# x df (combined with mount info)
$ x df --tsv
Filesystem    Type    Size    Used    Avail   Use%    Mounted_path    Mounted_attr
/dev/sda1     ext4    500G    200G    300G    40%     /               rw,relatime

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Related

• Native df(1) manual page
• Native mount(8) manual page