df -B is not valid on my system (SuSE), and the man page is copyright
2001.

George


Jim wrote:
> 
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> - From a man df | more on my M8.0 system:
> 
> DF(1)                          FSF                          DF(1)
> 
> NAME
>        df - report filesystem disk space usage
> 
> SYNOPSIS
>        df [OPTION]... [FILE]...
> 
> DESCRIPTION
>        This manual page documents the GNU version of df.  df dis­
>        plays the amount of disk space available on the filesystem
>        containing  each  file  name argument.  If no file name is
>        given,  the  space  available  on  all  currently  mounted
>        filesystems is shown.  Disk space is shown in 1K blocks by
>        default, unless the environment  variable  POSIXLY_CORRECT
>        is set, in which case 512-byte blocks are used.
> 
>        If  an argument is the absolute file name of a disk device
>        node containing a mounted filesystem, df shows  the  space
>        available on that filesystem rather than on the filesystem
>        containing the device  node  (which  is  always  the  root
>        filesystem).   This  version  of  df cannot show the space
>        available on unmounted filesystems, because on most  kinds
>        of  systems  doing  so  requires very nonportable intimate
>        knowledge of filesystem structures.
> 
> OPTIONS
>        Show information about the filesystem on which  each  FILE
>        resides, or all filesystems by default.
> 
>        -a, --all
>               include filesystems having 0 blocks
> 
>        --block-size=SIZE use SIZE-byte blocks
> 
>        -h, --human-readable
>               print sizes in human readable format (e.g., 1K 234M
>               2G)
> 
>        -H, --si
>               likewise, but use powers of 1000 not 1024
> 
>        -i, --inodes
>               list inode information instead of block usage
> 
>        -k, --kilobytes
>               like --block-size=1024
> 
>        -l, --local
>               limit listing to local filesystems
> 
>        -m, --megabytes
>               like --block-size=1048576
> 
>        --no-sync
>               do  not  invoke  sync  before  getting  usage  info
> 
> GNU fileutils 4.0p          March 2001                          1
> 
> DF(1)                          FSF                          DF(1)
> 
>               (default)
> 
>        -P, --portability
>               use the POSIX output format
> 
>        --sync invoke sync before getting usage info
> 
>        -t, --type=TYPE
>               limit listing to filesystems of type TYPE
> 
>        -T, --print-type
>               print filesystem type
> 
>        -x, --exclude-type=TYPE
>               limit listing to filesystems not of type TYPE
> 
>        -v     (ignored)
> 
>        --help display this help and exit
> 
>        --version
>               output version information and exit
> 
> AUTHOR
>        Written  by  Torbjorn  Granlund,  David  MacKenzie,  Larry
>        McVoy, and Paul Eggert.
> 
> REPORTING BUGS
>        Report bugs to <bug-fileutils@gnu.org>.
> 
> COPYRIGHT
>        Copyright © 1999 Free Software Foundation, Inc.
>        This is free software; see the source for  copying  condi­
>        tions.  There is NO warranty; not even for MERCHANTABILITY
>        or FITNESS FOR A PARTICULAR PURPOSE.
> 
> SEE ALSO
>        The full documentation for df is maintained as  a  Texinfo
>        manual.    If  the  info  and  df  programs  are  properly
>        installed at your site, the command
> 
>               info df
> 
>        should give you access to the complete manual.
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> GNU fileutils 4.0p          March 2001                          2
> 
> On Thursday 13 June 2002 10:59, you wrote:
> > I have a couple of students using Mandrake on laptops
> > who reported to me that df -B MB is a valid option for
> > df on their system. They even supply output showing
> > what it does.
> >
> > I've never heard of such an option in any version of
> > Unix I've ever used. Mandrake is based on Red Hat,
> > which uses the GNU tools for all the most standard
> > utilities, right?
> >
> > Does anyone know anything about this? I'd love to see a
> > df(1) man page off a Mandrake system.
> 
> - --
> Jim
> 
> Freedom is worth protecting
> 
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