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Top Forums Shell Programming and Scripting Parse hdiutil -plist data for specific info Post 302625377 by nextyoyoma on Tuesday 17th of April 2012 04:43:45 PM
Old 04-17-2012
Parse hdiutil -plist data for specific info

I am trying to get the mounted size of a compressed .dmg. I can use hdiutil imageinfo -plist $imagename to get a lot of info, including what I need. The problem is that I have no idea how to parse that single piece of info into a variable (or in this case, array element). Here is what I have so far

Code:
#!/bin/bash
#first part of script which generates the array below
for i in ${DMGLIST[@]} #This array contains a list of .dmg files
	do
	hdiutil imageinfo -plist $i | #some way to parse stdout for the info and save it to a variable
	done

The info I need is in the middle of the output
Code:
	<key>Total Bytes</key>
		<integer>73400320</integer>

And I have no idea how to go about parsing through it since the string is broken up by the </key> and <integer> things. I can think of some complex, inelegant ways, but I'm sure someone here has an idea for how to do it better! Thanks!
 

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MODLOAD(8)						    BSD System Manager's Manual 						MODLOAD(8)

NAME
modload -- load a kernel module SYNOPSIS
modload [-fP] [-b var=boolean] [-i var=integer] [-s var=string] module modload -p [-b var=boolean] [-d var] [-i var=integer] [-m plist] [-s var=string] DESCRIPTION
The modload utility loads a kernel module specified by the module parameter into the running system. Modules are loaded from the default system module areas unless the module parameter contains a path separator character ('/'). The options to modload are as follows: -b var=boolean Pass the module a boolean property with the name var. boolean may be either true or false. -d var When used in conjuction with -m, delete var from the plist specified. -f When a module is loaded, the kernel checks if the module is compatible with the running kernel and will refuse to load mod- ules that are potentially incompatible. This option disables compatibility checks. Note: an incompatible module can cause system instability, including data loss or corruption. This option is also required for re-enabling a builtin module that was disabled using modunload(8). -i var=integer Pass the module an integer property with the name var and integral value integer. -m plist When used in conjuction with -p, merge new options with an existing property list contained in plist. -P This option tells the kernel not to load an associated property list. -p Output a property list suitable for loading along with a module. When using this option, you do not need to specify a mod- ule. Use -m and -d to read and modify an existing property list. -s var=string Pass the module a string property with the name var and string value string. DIAGNOSTICS
The modload utility exits with a status of 0 on success and with a nonzero status if an error occurs. SEE ALSO
module(7), modstat(8), modunload(8) HISTORY
The modload command was designed to be similar in functionality to the corresponding command in SunOS 4.1.3. BSD
August 6, 2011 BSD
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