Pythonpy是一个工具，可以方便地访问awk和sed的许多特性，但使用python语法:

$ echo me2 | py -x 're.sub("me", "you", x)'
you2

In the beginning there was sh, sed, and awk (and find, and grep, and...). It was good. But awk can be an odd little beast and hard to remember if you don't use it often. Then the great camel created Perl. Perl was a system administrator's dream. It was like shell scripting on steroids. Text processing, including regular expressions were just part of the language. Then it got ugly... People tried to make big applications with Perl. Now, don't get me wrong, Perl can be an application, but it can (can!) look like a mess if you're not really careful. Then there is all this flat data business. It's enough to drive a programmer nuts.

进入Python、Ruby等。这些都是非常好的通用语言。它们支持文本处理，并且做得很好(尽管可能与语言的基本核心没有那么紧密地交织在一起)。但它们也可以很好地扩展，并且在一天结束时仍然有漂亮的代码。他们还发展了相当庞大的社区，有大量的图书馆，几乎可以提供任何东西。

Now, much of the negativeness towards Perl is a matter of opinion, and certainly some people can write very clean Perl, but with this many people complaining about it being too easy to create obfuscated code, you know some grain of truth is there. The question really becomes then, are you ever going to use this language for more than simple bash script replacements. If not, learn some more Perl.. it is absolutely fantastic for that. If, on the other hand, you want a language that will grow with you as you want to do more, may I suggest Python or Ruby.

不管怎样，祝你好运!

如果您想使用Python作为shell，为什么不看看IPython呢?用互动的方式学习语言也很好。 如果需要进行大量的文本操作，并且使用Vim作为文本编辑器，那么还可以直接用python为Vim编写插件。只需在Vim中输入“:help python”，然后按照说明操作，或者看看这个演示文稿。它是如此简单和强大的编写函数，你将直接在你的编辑器中使用!

我在PyPI: ez上发布了一个包。 使用pip install ez进行安装。

它在shell中打包了通用命令，我的库使用了与shell基本相同的语法。例如，cp(源，目标)可以同时处理文件和文件夹!(书纸的包装。shutil副本。Copytree，它决定什么时候使用哪个)。更妙的是，它可以支持像R!

另一个例子:没有os。Walk，使用fls(path, regex)递归地查找文件并使用正则表达式进行过滤，它将返回带有或没有全路径的文件列表

最后一个例子:你可以结合它们来编写非常简单的脚本: Files = fls('.'，'py$');文件,myDir (cp)

一定要去看看!我花了几百个小时来编写/改进它!

我刚刚发现了如何结合bash和ipython的最佳部分。到目前为止，这似乎比使用subprocess等更舒服。你可以很容易地复制现有bash脚本的大部分内容，例如以python的方式添加错误处理:) 这是我的结果:

#!/usr/bin/env ipython3

# *** How to have the most comfort scripting experience of your life ***
# ######################################################################
#
# … by using ipython for scripting combined with subcommands from bash!
#
# 1. echo "#!/usr/bin/env ipython3" > scriptname.ipy    # creates new ipy-file
#
# 2. chmod +x scriptname.ipy                            # make in executable
#
# 3. starting with line 2, write normal python or do some of
#    the ! magic of ipython, so that you can use unix commands
#    within python and even assign their output to a variable via
#    var = !cmd1 | cmd2 | cmd3                          # enjoy ;)
#
# 4. run via ./scriptname.ipy - if it fails with recognizing % and !
#    but parses raw python fine, please check again for the .ipy suffix

# ugly example, please go and find more in the wild
files = !ls *.* | grep "y"
for file in files:
  !echo $file | grep "p"
# sorry for this nonsense example ;)

请参阅IPython文档，了解系统shell命令并将其用作系统shell。

最好的选择是专门针对您的问题的工具。如果它正在处理文本文件，那么Sed、Awk和Perl是最佳竞争者。Python是一种通用动态语言。与任何通用语言一样，它支持文件操作，但这不是它的核心目的。如果我特别需要一种动态语言，我会考虑Python或Ruby。

简而言之，非常好地学习Sed和Awk，以及所有其他随*nix风格而来的好东西(所有Bash内置，grep, tr等等)。如果您感兴趣的是文本文件处理，那么您已经使用了正确的方法。