df question Post: 302604697

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Operating Systems AIX df question Post 302604697 by methyl on Monday 5th of March 2012 05:31:12 PM

03-05-2012

Registered User

Amazing that you have exactly the same figures as in the man df page.
Help - AIX 6.1 Information Center

I think we need to see figures from a live system for df -k (if the numbers don't overflow) and df -m and to know what the mount command was for this filesystem. Chances are that it will be correct and that the man df example is wrong.

Mathematically the percentage used should be:

Code:

(((Size - Used) x 100) / Size)

However I have seen differences like this caused by error accumulation in Real Arithmetic. i.e. The program was not written to use sufficient precision.

Not on AIX but I have seen a version of "df" which used 1000 as the divisor not 1024 which was scary.

Footnote: Usually this question is because the free space percentage figure is too low! Usually because the account issuing the "df" was not root. This is one of the very few times where I have seen the free space percentage too high.

Last edited by methyl; 03-05-2012 at 06:51 PM.. Reason: footnote

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LEARN ABOUT DEBIAN

gpe-question

GPE-QUESTION(1) 						   gpe-question 						   GPE-QUESTION(1)

NAME

       gpe-question - GPE interface for asking questions from shell scripts.

SYNOPSIS

       gpe-question [---icon] name {--question "Question text"} {--buttons icon1:text1} [icon2:text2 ...]

DESCRIPTION

       This manual page was written for the Debian(TM) distribution because the original program does not have a manual page.

       gpe-question provides dialogues to raise a question within the GPE Palmtop Environment with cancel and ok buttons.

OPTIONS

       --question STRING
	  The question to ask the user via the dialogue.

       --buttons type:label
	  The type and label of the button(s) to be shown. Repeat for additional buttons.

EXAMPLES

       gpe-question "test" --question "Do you want to check first?"  --buttons YES:yes NO:no

AUTHOR

       This manual page was written by Neil Williams <codehelp@debian.org> for the Debian(TM) system (but may be used by others). Permission is
       granted to copy, distribute and/or modify this document under the terms of the GNU General Public License, Version 2 any later version
       published by the Free Software Foundation.

       On Debian systems, the complete text of the GNU General Public License can be found in /usr/share/common-licenses/GPL.

AUTHOR

       Moray Allen
	  Author.

COPYRIGHT

       Copyright (C) 2007 Neil Williams

Debian 1							 January 16, 2007						   GPE-QUESTION(1)