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Top Forums Shell Programming and Scripting Formatting problem with sizes from /proc/partitions Post 302437768 by zaxxon on Friday 16th of July 2010 05:21:42 AM
Old 07-16-2010
dm-0 and dm-1 look like Linux multipath SAN-disks.

A block is 512 bytes. To represent in GB, you have to calculate it. A hint with display is to use maybe the printf format option of using something like:
Code:
$> printf "%08d\n" "7"
00000007
$> printf "%08d\n" "123"
00000123

to represent something like 0.03 GB for example.

Since it is nicely separated to columns, awk might come handy also. If you get stuck at a point do not hesitate to ask here.
 

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PRINTF(1)								FSF								 PRINTF(1)

NAME
printf - format and print data SYNOPSIS
printf FORMAT [ARGUMENT]... printf OPTION DESCRIPTION
NOTE: your shell may have its own version of printf which will supercede the version described here. Please refer to your shell's documen- tation for details about the options it supports. Print ARGUMENT(s) according to FORMAT. --help display this help and exit --version output version information and exit FORMAT controls the output as in C printf. Interpreted sequences are: " double quote NNN character with octal value NNN (0 to 3 digits) \ backslash a alert (BEL)  backspace c produce no further output f form feed new line carriage return horizontal tab v vertical tab xNNN byte with hexadecimal value NNN (1 to 3 digits) uNNNN character with hexadecimal value NNNN (4 digits) UNNNNNNNN character with hexadecimal value NNNNNNNN (8 digits) %% a single % %b ARGUMENT as a string with `' escapes interpreted and all C format specifications ending with one of diouxXfeEgGcs, with ARGUMENTs converted to proper type first. Variable widths are han- dled. AUTHOR
Written by David MacKenzie. REPORTING BUGS
Report bugs to <bug-coreutils@gnu.org>. COPYRIGHT
Copyright (C) 2002 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU- LAR PURPOSE. SEE ALSO
The full documentation for printf is maintained as a Texinfo manual. If the info and printf programs are properly installed at your site, the command info printf should give you access to the complete manual. GNU coreutils 4.5.3 February 2003 PRINTF(1)
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