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Python For Unix and Linux Systems Administration (Anglais) Broché – 12 septembre 2008

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Book by Gift Noah Jones Jeremy M

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Commentaires client les plus utiles sur (beta) 3.1 étoiles sur 5 18 commentaires
2.0 étoiles sur 5 Don't recommend 15 mars 2017
Par Malcolm Silva - Publié sur
Format: Broché Achat vérifié
I'm a 2yr Linux Sys Adm looking to pick up Python. Gave up by chapter 3 after just skimming over chapter 2.
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.
13 internautes sur 15 ont trouvé ce commentaire utile 
3.0 étoiles sur 5 Could be better, but still useful 18 décembre 2008
Par Jeremy - Publié sur
Format: Broché Achat vérifié
Flicking through the table of contents, there seems to be a lot of promise in Python for Unix and Linux System Administration. The book seems targeted specifically for Unix admins, touching on actual problems and providing actual solutions. On the face of it, it looks to be Programming Python with an OS-specific slant.

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.
5.0 étoiles sur 5 It helped me a lot as a systems administrator... 22 mars 2013
Par Lev Romanov - Publié sur
Format: Broché Achat vérifié
Very well written book. It helped me in advancing my carrier.
easy to understand, with a real life examples. I just love all O'Realy books.
7 internautes sur 9 ont trouvé ce commentaire utile 
2.0 étoiles sur 5 Not what I expected 7 janvier 2009
Par Stuart Fogg - Publié sur
Format: Broché Achat vérifié
This book may work for some people but not for me.

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.
11 internautes sur 13 ont trouvé ce commentaire utile 
4.0 étoiles sur 5 Covers right topics, writing could be better 24 septembre 2008
Par Timothy Bower - Publié sur
Format: Broché Achat vérifié
As a sys-admin who has used Python, I couldn't wait for this text to come out. It certainly fills a need and contains useful insights on how to get the job done faster.

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.
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