- Taschenbuch: 456 Seiten
- Verlag: O'Reilly & Associates; Auflage: 1 (1. September 2008)
- Sprache: Englisch
- ISBN-10: 0596515820
- ISBN-13: 978-0596515829
- Größe und/oder Gewicht: 17,8 x 2,3 x 23,3 cm
- Durchschnittliche Kundenbewertung: Schreiben Sie die erste Bewertung
- Amazon Bestseller-Rang: Nr. 427.317 in Fremdsprachige Bücher (Siehe Top 100 in Fremdsprachige Bücher)
Python for Unix and Linux System Administration (Englisch) Taschenbuch – 1. September 2008
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Python is an ideal language for solving problems, especially in Linux and Unix networks. With this pragmatic book, administrators can review various tasks that often occur in the management of these systems, and learn how Python can provide a more efficient and less painful way to handle them. Each chapter in "Python for Unix and Linux System Administration" presents a particular administrative issue, such as concurrency or data backup, and presents Python solutions through hands-on examples. Once you finish this book, you'll be able to develop your own set of command-line utilities with Python to tackle a wide range of problems.Discover how this language can help you: read text files and extract information; run tasks concurrently using the threading and forking options; get information from one process to another using network facilities; create clickable GUIs to handle large and complex utilities; monitor large clusters of machines by interacting with SNMP programmatically; document your work with a plug-in for the Trac wiki and issue tracking system; solve unique data backup challenges with customized scripts; and, interact with MySQL, SQLite, Oracle, Postgres, Django ORM, and SQLAlchemy.With this book, you'll learn how to package and deploy your Python applications and libraries, and write code that runs equally well on multiple Unix platforms. You'll also learn about several Python-related technologies that will make your life much easier.
Über den Autor und weitere Mitwirkende
Noah Gift is the co-author of Python For Unix and Linux by O'Reilly. He is an author, speaker, consultant, and community leader, writing for publications such as IBM Developerworks, Red Hat Magazine, O'Reilly, and MacTech, and Manning.
His consulting company is Giftcs, LLC and it provides solutions for Python Development and Systems Engineering. His personal website is www.noahgift.com. Noah is also the former organizer for PyAtl, which is the Python User Group for Atlanta, GA. He has given presentations at PyCon and PyAtl.
He has a Master's degree in CIS from Cal State Los Angeles, B.S. in Nutritional Science from Cal Poly San Luis Obispo, is an Apple ACSA and LPI certified SysAdmin, as well as a Avid Certified Support Representative. He has worked at companies such as, Caltech, Disney Feature Animation, Sony Imageworks, and Turner Studios, and Weta Digital. You can see all of his film credits at IMBD.
As a teenager he was a freelance television editor for ABC Network News. While at Caltech he worked for the Nobel Prize Winning President as a Mac Expert, and at Disney and Sony worked on the first feature animated films for both companies: Chicken Little, and Surf's Up, respectively. Recently he has worked on Python development projects as diverse as writing an SNMP auto-discovery system, writing a Content Management System from scratch, creating a large scale Web 2.0/Social Networking Application in Django for Turner Studios, to writing IPhone applications that talk to Google App Engine. He is also involved in a new media journalism project, Spotlight on FOSS, that had a kickoff interview of Mark Shuttleworth.
He is currently co-authoring a book on Google App Engine and writing a large Google App Engine Exercise and Nutrition Tracking Application. Most recently, he works as a Python programmer for Weta Digital in New Zealand, which has one of the world's largest render farms/super computer sites.
In his free time he enjoys spending time with his wife Leah, and their son Liam, and playing and composing piano music. He is also into exercising religiously, including running in and training for marathons, and blogging about it. When he gets a chance, he likes to write open source software. He is also interested in Artificial Intelligence research and software development.
Jeremy Jones is a software engineer/system administrator who works for Predictix. His weapon of choice is Python but he has done plenty of shell and Perl and a touch of Java.
He is the author of the open source projects Munkware, a multiproducer/multiconsumer, transactional, and persistent queuing mechanism, ediplex, an EDI (Electronic Data Interchange) parsing engine, and podgrabber a podcast downloader. All three projects were written in the Python language.
Jeremy spends his spare time enjoying his family and doing a little writing. He lives in Conyers, Georgia, just east of Atlanta, with his wife, Debra and his two children, Zane and Justus.
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The book stresses thoroughly how simple Python makes things, but then applies Python to tasks that take a line in bash, and still calls it simple when using 8 lines of Python.
The pacing is also not quite there... This book isn't for you, in my opinion, unless you're already familiar with standalone Python and are just looking for applications to sys admin'ing, and even then, it's a stretch in my opinion.
Unfortunately, the execution here just doesn't seem to be on a par with that of other O'Reilly books. There is useful information to be had in this text, to be sure, but it's at times difficult to extract.
Perhaps my view of this book is tainted by my recent experience with The Ruby Programming Language, one of the most enjoyable technical reference books I've ever encountered. I'll spare you the details (I have a full review on that product page), but rarely have I felt such joy in reading about code.
I do not feel such joy when slogging through Python for Unix and Linux System Administration. I get the impression, at times, that the author should have simply let the code speak for itself, and spared us his narration entirely.
For example, here is a snippet from Chapter 3, on text manipulation:
"The final file method that we will discuss for getting text out of a file is readlines(). Readlines() is not a typo, nor is it a cut-and-paste error from the previous example. Readlines() reads in all of the lines of a file. Well, that is almost true."
This text feels horribly labored to me. He's telling us what readlines() is not, and it takes him a while to tell us what it actually is. Also, note that Readlines() (with the capital "R") is not valid; despite its use in the beginning of a sentence, the author should always use the proper capitalization of the method to avoid confusion. Nitpick, perhaps, but this could catch somebody off guard.
Contrast this with the pydoc description of readlines():
"Call readline() repeatedly and return a list of the lines so read. The optional size argument, if given, is an approximate bound on the total number of bytes in the lines returned."
Clear, concise, and much more legible. When I want to know about readlines(), I want to know what it does and what it is, not what it *doesn't* do and *almost* is.
This is just an example. There are others, but I think you get the idea: it's not a book you'll want to curl up with in front of the fire for a pleasant read. Instead, this is a book that does have useful information in it, but you'll have to force yourself to dig it out.
The book does provide some useful examples for addressing specific problems, and if you have such a problem this might be exactly what you need. Do not mistake this for a cookbook, though; it's a lengthy tutorial with real world examples, not a tome of useful hacks that you will be constantly calling upon.
In short: a workable introduction to a variety of useful techniques, though lacking a bit in quality compared to other O'Reilly books. Unless you're really interested in some of the OS-specific topics covered in this book, the more general (and much more comprehensive) Programming Python will probably serve you better.
I give it 2 stars for an enticing table of contents. Many topics of interest to UNIX administrators are covered.
I omit the 3rd star due to the reliance on IPython, which is at best not particularly relevant to this topic and at worst would not compile on my Slackware machine.
I omit the 4th and 5th stars for a writing style I find intensely irritating. The authors write in a chatty, even gushy first person style which reminds me of grade school. Two examples from the first chapter:
"... if you make this decision, it will change your life."
"Wow, that is pretty cool, right?"
Another sentence indicates a possible cause:
"Here is what it looks like when we do that on Noah's Macbook Pro laptop:"
Your mileage may vary. Aeleen Frisch, an excellent O'Reilly author, wrote a very nice forward. With a background in traditional UNIX (and later Linux) I just don't find this book up to O'Reilly's usual high standards. I'll give it to a friend who uses mostly Macintosh computers and hope it will help her more.
The writing could be better though. The conversational writing style causes the book to take a while to say simple things. It also rambles a bit. I've noticed a couple times that it introduces a topic, goes off on one or two tangents and then gets back to the original topic. I've also noticed more than a few grammar and spelling errors.
Because of the value of the material covered, it is still well worth reading.
When Autor try to demostrate python is better, he give some bad examples.
Seems like Autor doesn't like bash syntax. For various tasks bash is really better, because it was dessign for do it.
Later, the book is improved and give you some very good tips