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Full Discussion: 'h' flag in du
Top Forums UNIX for Dummies Questions & Answers 'h' flag in du Post 302675233 by sudon't on Sunday 22nd of July 2012 12:15:32 PM
Old 07-22-2012
'h' flag in du

Hey, all!
Why is the "human readable" flag changing the behavior of du? And while I'm at it, can you make du only look at files, not directories. I often find myself wanting to find the largest file(s) in a dir or vol. Using 'find' itself, it seems you have to at least be able to guess the size of the files you're looking for, so you can specify what sized files 'find' should ignore. Or, is there an app for that? : )

Code:
-bash $ du -a /Volumes/GARMIN | sort -n -r | head -n 10
7483232	/Volumes/GARMIN
5791224	/Volumes/GARMIN/.System
3154048	/Volumes/GARMIN/.System/gmapprom.img
914128	/Volumes/GARMIN/.System/JCV
914112	/Volumes/GARMIN/.System/JCV/D3191020A.JCV
847256	/Volumes/GARMIN/Voice
779856	/Volumes/GARMIN/.System/SID
779848	/Volumes/GARMIN/.System/SID/D2656040A.sid
481400	/Volumes/GARMIN/.Trashes
481392	/Volumes/GARMIN/.Trashes/501

-bash $ du -a -h /Volumes/GARMIN | sort -n -r | head -n 10
1004K	/Volumes/GARMIN/Voice/Catala__.vpm
1000K	/Volumes/GARMIN/Voice/Russkiy__.vpm
1000K	/Volumes/GARMIN/Voice/Cesky__.vpm
992K	/Volumes/GARMIN/Voice/Slovenscina__.vpm
980K	/Volumes/GARMIN/Voice/Ellinika__.vpm
976K	/Volumes/GARMIN/Voice/Magyar__.vpm
976K	/Volumes/GARMIN/Voice/Arabic__.vpm
968K	/Volumes/GARMIN/Voice/Deutsch__.vpm
964K	/Volumes/GARMIN/Voice/Srpski__.vpm
924K	/Volumes/GARMIN/.Spotlight-V100/Store-V1/Stores/5938D254-6028-451A-9B7E-03556D7B82A0/0.indexPostings

---------- Post updated at 11:15 AM ---------- Previous update was at 10:55 AM ----------

Oh wait, I think I get it - 'sort' sees 1004k as larger than 3GB because it's a bigger number, right? *sigh*

Last edited by sudon't; 07-22-2012 at 01:23 PM..
 

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PMC_NAME_OF_CAPABILITY(3)				   BSD Library Functions Manual 				 PMC_NAME_OF_CAPABILITY(3)

NAME
pmc_name_of_capability, pmc_name_of_class, pmc_name_of_cputype, pmc_name_of_disposition, pmc_name_of_event, pmc_name_of_mode, pmc_name_of_state -- human readable names for numeric constants used by pmc(3) and hwpmc(4) LIBRARY
Performance Counters Library (libpmc, -lpmc) SYNOPSIS
#include <pmc.h> const char * pmc_name_of_capability(enum pmc_caps pc); const char * pmc_name_of_class(enum pmc_class pc); const char * pmc_name_of_cputype(enum pmc_cputype ct); const char * pmc_name_of_disposition(enum pmc_disp pd); const char * pmc_name_of_event(enum pmc_event pe); const char * pmc_name_of_mode(enum pmc_mode pm); const char * pmc_name_of_state(enum pmc_state ps); DESCRIPTION
These convenience functions translate numeric constants used by the Performance Counters Library (libpmc, -lpmc) to const char * pointers to human readable representations of their arguments. Function pmc_name_of_capability() translates a PMC capability flag given in argument pc to a human readable string. PMC capabilities are described in pmc(3). Function pmc_name_of_class() translates the PMC class value specified in argument pc to a human readable name. PMC classes are described in pmc(3). Function pmc_name_of_cputype() translates the CPU type value specified in argument ct to a human readable name. CPU types known to the library are described in pmc(3). Function pmc_name_of_disposition() translates the PMC row disposition specified in argument pd to a human readable name. PMC row disposi- tions are described in hwpmc(4). Function pmc_name_of_event() translates the PMC event number specified by argument pe to a string. PMC event names are documented in section EVENT SPECIFIERS of pmc(3). Function pmc_name_of_mode() translates the PMC mode specified by argument pm to a human readable string. PMC modes are described in pmc(3). Function pmc_name_of_state() translates the value of argument ps to a human readable name. IMPLEMENTATION NOTES
The returned pointers point to static storage inside the PMC library and should not be freed by the caller. RETURN VALUES
These functions return a non-NULL pointer on successful completion. In case of an error, a NULL pointer is returned and the global variable errno is set to indicate the error. ERRORS
A call to these functions may fail with the following errors: [EINVAL] The function argument specified an invalid value. SEE ALSO
pmc(3), pmc_cpuinfo(3), pmc_pmcinfo(3), hwpmc(4) BSD
November 24, 2007 BSD
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