a df option question

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Author: Lynn David Newton
Date:  
Subject: a df option question
No more responses necessary. See below.

slr> nor have i, my RH7.1, 7.2 and 7.3 boxes all report:
slr> df -b MB
slr> df: invalid option -- b


That was an upper case -B.

Someone sent me a copy of a df man page, said to be
from Mandrake 8.2, that does indeed document -B MB as
being valid. The relevant part of the man page says:

       -B, --block-size=SIZE use SIZE-byte blocks


       ...


       SIZE may be (or may be an integer optionally followed  by)
       one  of    following:  kB    1000,  K  1024,     MB  1,000,000, M
       1,048,576, and so on for G, T, P, E, Z, Y.


Interesting. And certainly unportable.

--
Lynn David Newton
Phoenix, AZ