Manage DCOS tasks

Usage:
    dcos task --info
    dcos task [--completed --json <task>]
    dcos task log [--completed --follow --lines=N] <task> [<file>]
    dcos task ls [--long] <task> [<path>]

Options:
    -h, --help    Show this screen
    --info        Show a short description of this subcommand
    --completed   Include completed tasks as well
    --follow      Print data as the file grows
    --json        Print json-formatted tasks
    --lines=N     Print the last N lines [default: 10]
    --long        Use a long listing format
    --version     Show version

Positional Arguments:
    <file>        Print this file. [default: stdout]
    <path>        List this directory. [default: '.']
    <task>        Only match tasks whose ID matches <task>.  <task> may be
                  a substring of the ID, or a unix glob pattern.
