{
  "name": "df",
  "description": "Display free disk space",
  "options": [
    {
      "names": [
        "-a"
      ],
      "description": "Show all mount points"
    },
    {
      "names": [
        "-b",
        "-P"
      ],
      "description": "Use 512-byte blocks (default)",
      "exclusiveOn": [
        "-g",
        "-k",
        "-m"
      ]
    },
    {
      "names": [
        "-g"
      ],
      "description": "Use 1073741824-byte (1-Gbyte) blocks",
      "exclusiveOn": [
        "-b",
        "-P",
        "-m",
        "-k"
      ]
    },
    {
      "names": [
        "-m"
      ],
      "description": "Use 1048576-byte (1-Mbyte) blocks",
      "exclusiveOn": [
        "-b",
        "-P",
        "-g",
        "-k"
      ]
    },
    {
      "names": [
        "-k"
      ],
      "description": "Use 1024-byte (1-Kbyte) blocks",
      "exclusiveOn": [
        "-b",
        "-P",
        "-g",
        "-m"
      ]
    },
    {
      "names": [
        "-H"
      ],
      "description": "\"Human-readable\" output, uses base 10 unit suffixes",
      "exclusiveOn": [
        "-h"
      ]
    },
    {
      "names": [
        "-h"
      ],
      "description": "\"Human-readable\" output, uses base 2 unit suffixes",
      "exclusiveOn": [
        "-H"
      ]
    },
    {
      "names": [
        "-i"
      ],
      "description": "Include the number of free inodes"
    },
    {
      "names": [
        "-l"
      ],
      "description": "Only display information about locally-mounted filesystems"
    },
    {
      "names": [
        "-n"
      ],
      "description": "Print out the previously obtained statistics"
    },
    {
      "names": [
        "-T"
      ],
      "description": "Only print out statistics for filesystems of the specified types (comma separated)",
      "args": [
        {
          "name": "filesystem"
        }
      ]
    }
  ],
  "args": [
    {
      "name": "file or filesystem"
    }
  ]
}