[学习类] [IT与网络] [PDF] [BT/网盘] 【Python for Unix and Linux System Administration】【PDF英文原版高清】458页

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Python for Unix and Linux System Administration，

英文原版高清

are examples of ways to discover and monitor  subnets  automatically  with SNMP, to
convert to an interactive Python shell called IPython, to build data processing pipelines, to write
custom  metadata  management tools with object-relational mappers,  to per- form network
programming, to write command-line tools, and much more.

If you are coming from a shell programming/scripting background, though, don’t worry at all. You,
too, can learn Python quite easily. You need only motivation, curiosity, and determination, the
same factors that led you to pick up this book and look at the in- troduction in the first place.

We sense there are still a few skeptics out there. Maybe some of the things you have heard about
programming have scared you. One common,  and horribly false, miscon- ception is that only some
people can learn to program,  and they are a mysterious and elite few. The frank truth is that
anyone can learn how to program.  A second, equally false, misconception is that earning a computer
science degree is the only way a person can truly become a software engineer. But some of the most
prolific software developers do not have engineering degrees. There are people with philosophy,
journalism, nutritional science, and English degrees who are competent Python programmers. Having a
degree in computer science is not a requirement to learn Python, although it certainly doesn’t
hurt.

Another funny, and false, misconception is that you must have started to program  in your teenage
years, or you will never learn to program.  While this makes people who were lucky enough to have
someone in their life that encouraged  them to program  at a young age feel good, it is another 
myth. It is very helpful to have started  learning programming at a young age, but age is not a
requirement to learn Python. Learning Python is most certainly not a “young person’s game,” as we
have heard some people say. There are countless cases of developers who learned to program in their
late 20s,
30s, 40s, and onward.

If you have gotten this far, we should point out that you, the reader, have an advantage many
people do not. If you decided to pick up a book on Python for Unix and Linux system administration,
then you most likely know something  about  how to execute commands from a shell. This is a
tremendous advantage to learning to become a Python programmer. Having an understanding of the way
to execute commands from a ter- minal is all that is required for this introduction to Python. If
you truly believe you will learn how to program with Python, then read the next section
immediately. If you don’t believe it yet, then  reread this section again, and convince yourself it
really is just a matter  of getting your mind  to understand you do have the power to learn how to
program in Python. It is really that simple; if you make this decision, it will change your