Re: bin/19635: add -c for grand total to df(1), like du(1) does

[Sheldon Hearn]

As a side issue, can anyone explain these peculiar results from df(1)'s
huamn-readable (-h) output:

Filesystem              Size   Used  Avail Capacity  Mounted on
mfs:26                   87M    11K    80M     0%    /tmp
/dev/ad0s1f             1.2G   934M   241M    80%    /usr
/dev/ad0s1e             193M    92M    86M    52%    /var
/dev/ccd0c              1.8G   786M   900M    47%    /a
/dev/ad1s1e             1.3G   728M   474M    61%    /b
procfs                  4.0K   4.0K     0B   100%    /proc
rodent.ops:/home/ncvs   3.4G   3.1G    36M    99%    /usr/home/ncvs

In particular, I can't believe that 87M - 11K == 80M (I'd expect 86M or
87M).  Nor is it credible that 1.8G - 786 == 900M (I'd expect 1057M or
1G).

Am I being obtuse, and if so could someone explain my folly? :-)

Ciao,
Sheldon.


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