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Full Discussion: block size and du output
Top Forums Shell Programming and Scripting block size and du output Post 60135 by zazzybob on Tuesday 11th of January 2005 07:27:46 AM
Old 01-11-2005
Hmm... this confusion is contagious - i'm not too sure I follow you at all! Smilie

I assume from your previous posts you're still using Linux (and therefore GNU ls). I also will assume that you're trying to display file sizes in 512 byte blocks? If so, you don't need to do any calculation - if you run

ls -Rls --block-size=512

you'll get a total block count at the top of each directories' listing - with each files size in 512-byte blocks in the first column of output, e.g.

Code:
$ ls -Rls --block-size=512
.:
total 16
  12 -rw-r--r--    1 zb foogroup     5265 Jan  2 22:34 index.html
   4 -rw-r--r--    1 zb foogroup     2043 Jan 10 14:52 submit_contact.php

So, armed with this, it's fairly easy to grep out the "total"s, and if desired, gain a total block count for the entire tree....

Code:
ls -Rls --block-size=512 | grep "^total" | awk 'BEGIN{c=0} {c+=$2} END{print c}'

Cheers
ZB
 

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DISKTAB(5)						      BSD File Formats Manual							DISKTAB(5)

NAME
disktab -- disk description file SYNOPSIS
#include <disklabel.h> DESCRIPTION
Disktab is a simple database which describes disk geometries and disk partition characteristics. It is used to initialize the disk label on the disk. The format is patterned after the termcap(5) terminal data base. Entries in disktab consist of a number of `:'-separated fields. The first field for each entry gives the names by which a disk's entry may be selected, separated by `|' characters. The last name given should be a long name fully identifying the disk. The optional fields for each entry are: ID Type Description ty str Type of disk (e.g. removable, winchester) dt str Type of controller (e.g. SMD, ESDI, floppy) ns num Number of sectors per track nt num Number of tracks per cylinder nc num Total number of cylinders on the disk sc num Number of sectors per cylinder, ns*nt default su num Number of sectors per unit, sc*nc default se num Sector size in bytes, DEV_BSIZE default sf bool Controller supports bad144-style bad sector forwarding rm num Rotation speed, rpm, 3600 default sk num Sector skew per track, default 0 cs num Sector skew per cylinder, default 0 hs num Headswitch time, usec, default 0 ts num One-cylinder seek time, usec, default 0 il num Sector interleave (n:1), 1 default d[0-4] num Drive-type-dependent parameters bs num Boot block size, default BBSIZE sb num Superblock size, default 0 ba num Block size for partition `a' (bytes) bd num Block size for partition `d' (bytes) be num Block size for partition `e' (bytes) bf num Block size for partition `f' (bytes) bg num Block size for partition `g' (bytes) bh num Block size for partition `h' (bytes) fa num Fragment size for partition `a' (bytes) fd num Fragment size for partition `d' (bytes) fe num Fragment size for partition `e' (bytes) ff num Fragment size for partition `f' (bytes) fg num Fragment size for partition `g' (bytes) fh num Fragment size for partition `h' (bytes) oa num Offset of partition `a' in sectors ob num Offset of partition `b' in sectors oc num Offset of partition `c' in sectors od num Offset of partition `d' in sectors oe num Offset of partition `e' in sectors of num Offset of partition `f' in sectors og num Offset of partition `g' in sectors oh num Offset of partition `h' in sectors pa num Size of partition `a' in sectors pb num Size of partition `b' in sectors pc num Size of partition `c' in sectors pd num Size of partition `d' in sectors pe num Size of partition `e' in sectors pf num Size of partition `f' in sectors pg num Size of partition `g' in sectors ph num Size of partition `h' in sectors ta str Partition type of partition `a' (4.2BSD file system, swap, etc) tb str Partition type of partition `b' tc str Partition type of partition `c' td str Partition type of partition `d' te str Partition type of partition `e' tf str Partition type of partition `f' tg str Partition type of partition `g' th str Partition type of partition `h' FILES
/etc/disktab SEE ALSO
getdiskbyname(3), bsdlabel(8), newfs(8) HISTORY
The disktab description file appeared in 4.2BSD. BSD
October 14, 2006 BSD
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