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Full Discussion: Shell Scripting Question
Top Forums Shell Programming and Scripting Shell Scripting Question Post 80504 by tech2040 on Tuesday 9th of August 2005 12:06:24 AM
Old 08-09-2005
Shell Scripting Question

To anyone who can help greetings,
I am a beginner at Unix shell scripting and am taking a class.
The assignment question is as follows:

use a command-line tool named "itstat" which will display the resolution of an image file and some other lines of information. It accepts a list of image files as arguments (i.e., "itstat FILE1 FILE2 ..."), and its output looks like this:
File: pet_mocap_comp_v1_tvfa_vd8.1713.jpg
Resolution: 720 x 547
Channels: 3
Channel Types: RGB without Alpha Bit
Depth: 8
You are in a directory with 50 randomly named and sized images, and you want to know quickly the resolution of each file. Write a script that takes no arguments and uses itstat to print the filename and resolution of each file in the current working directory in the following format:
g50_comp_v6_2kfa_lg10.0310.rla: 2048 x 1556 g50_comp_v6_2kfa_lg10.0610.rla: 2048 x 1556 g50_comp_v6_2kfa_lg10.0710.rla: 2048 x 1556



I cannot find the commandline tool "itstat" and therefore do not know how to create a proper script.

Any assistance will be greatly appreciated.
 

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Net::DNS::Question(3)					User Contributed Perl Documentation				     Net::DNS::Question(3)

NAME
Net::DNS::Question - DNS question record SYNOPSIS
use Net::DNS::Question; $question = new Net::DNS::Question('example.com', 'A', 'IN'); DESCRIPTION
A Net::DNS::Question object represents a record in the question section of a DNS packet. METHODS
new $question = new Net::DNS::Question('example.com', 'A', 'IN'); $question = new Net::DNS::Question('example.com'); $question = new Net::DNS::Question('192.0.32.10', 'PTR', 'IN'); $question = new Net::DNS::Question('192.0.32.10'); Creates a question object from the domain, type, and class passed as arguments. One or both type and class arguments may be omitted and will assume the default values shown above. RFC4291 and RFC4632 IP address/prefix notation is supported for queries in both in-addr.arpa and ip6.arpa namespaces. decode $question = decode Net::DNS::Question($data, $offset); ($question, $offset) = decode Net::DNS::Question($data, $offset); Decodes the question record at the specified location within a DNS wire-format packet. The first argument is a reference to the buffer containing the packet data. The second argument is the offset of the start of the question record. Returns a Net::DNS::Question object and the offset of the next location in the packet. An exception is raised if the object cannot be created (e.g., corrupt or insufficient data). encode $data = $question->encode( $offset, $hash ); Returns the Net::DNS::Question in binary format suitable for inclusion in a DNS packet buffer. The optional arguments are the offset within the packet data where the Net::DNS::Question is to be stored and a reference to a hash table used to index compressed names within the packet. qname, zname $qname = $question->qname; $zname = $question->zname; Returns the question name attribute. In dynamic update packets, this attribute is known as zname() and refers to the zone name. qtype, ztype $qtype = $question->qtype; $ztype = $question->ztype; Returns the question type attribute. In dynamic update packets, this attribute is known as ztype() and refers to the zone type. qclass, zclass $qclass = $question->qclass; $zclass = $question->zclass; Returns the question class attribute. In dynamic update packets, this attribute is known as zclass() and refers to the zone class. print $object->print; Prints the record to the standard output. Calls the string() method to get the string representation. string print "string = ", $question->string, " "; Returns a string representation of the question record. COPYRIGHT
Copyright (c)1997-2002 Michael Fuhr. Portions Copyright (c)2002-2004 Chris Reinhardt. Portions Copyright (c)2003,2006-2011 Dick Franks. All rights reserved. This program is free software; you may redistribute it and/or modify it under the same terms as Perl itself. SEE ALSO
perl, Net::DNS, Net::DNS::DomainName, Net::DNS::Packet, RFC 1035 Section 4.1.2 perl v5.16.2 2012-01-27 Net::DNS::Question(3)
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