[TUHS] Command line options and complexity

[Greg 'groggy' Lehey]

On Friday, 13 March 2020 at 21:45:21 +1100, Dave Horsfall wrote:
> On Fri, 13 Mar 2020, Greg 'groggy' Lehey wrote:
>
>>> -h is a gnuism, isn't it?
>>
>> It might have originated there, but then I would expect it to be spelt
>> '--produce-human-readable-output'.  I haven't been able to establish from the
>> FreeBSD sources or commit logs when it was introduced.  It would clearly have
>> been a reimplementation.
>
> It's in "df" as well, praise Cthulu:
>
>      aneurin# df -h
>      Filesystem     Size    Used   Avail Capacity  Mounted on
>      /dev/ad0s1a    496M    302M    154M    66%    /
>      /dev/ad0s1d    2.9G    1.4G    1.2G    54%    /usr
>      /dev/ad0s1e    989M    581M    329M    64%    /var
...

It also has the , option:

  === grog at eureka (/dev/pts/72) ~ 8 -> df -,
  Filesystem  1048576-blocks      Used     Avail Capacity  Mounted on
  /dev/ada0p4         39,662    21,918    14,571    60%    /
  /dev/ada0p2         39,662    13,447    23,042    37%    /destdir
  /dev/ada0p5      3,705,520 1,831,345 1,577,733    54%    /home
  /dev/ada1p1      7,629,565 6,358,607 1,194,661    84%    /Photos

I find it much easier to see the relative size like that.

Greg
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