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Re: One line command line filter

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To python-list@python.org
From Terry Reedy <tjreedy@udel.edu>
Subject Re: One line command line filter
Date Mon, 05 Sep 2011 21:25:44 -0400
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On 9/5/2011 7:18 PM, Steven D'Aprano wrote:
> Terry Reedy wrote:
>
>> The doc says "-c<command>
>> Execute the Python code in command. command can be one or more
>> statements separated by newlines,"
>>
>> However, I have no idea how to put newlines into a command-line string.
>
> I imagine that it depends on the shell you are using, but bash on Linux
> makes it simple: double quotes "..." are like Python's triple-quoted
> strings in that they can include newlines.
>
> [steve@sylar python]$ ls f*.py | python -c "import sys
>> print sys.stdin.read()"
> factorial.py
> fetchqm.py

I was guessing that whoever wrote the doc could do something like that. 
As far as I know, there is no way to escape a newline with Windows 
cmd.exe. (Someone please tell me if I am wrong!) An "unmatched" quote is 
either ignored or matched by the newline!

C:\Programs\Python32> python -c "print('haha')
haha

-- 
Terry Jan Reedy

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Thread

One line command line filter Jon Redgrave <jredgrave@capisco.com> - 2011-09-05 13:38 -0700
  Re: One line command line filter Thomas Jollans <t@jollybox.de> - 2011-09-05 22:47 +0200
    Re: One line command line filter Jon Redgrave <jredgrave@capisco.com> - 2011-09-05 14:32 -0700
      Re: One line command line filter Terry Reedy <tjreedy@udel.edu> - 2011-09-05 19:02 -0400
  Re: One line command line filter Terry Reedy <tjreedy@udel.edu> - 2011-09-05 18:21 -0400
    Re: One line command line filter Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-06 09:18 +1000
      Re: One line command line filter Terry Reedy <tjreedy@udel.edu> - 2011-09-05 21:25 -0400
      Re: One line command line filter Hans Mulder <hansmu@xs4all.nl> - 2011-09-06 13:15 +0200
  Re: One line command line filter Steven D'Aprano <steve+comp.lang.python@pearwood.info> - 2011-09-06 09:29 +1000
  Re: One line command line filter John Wiegley <jwiegley@gmail.com> - 2011-09-06 01:51 -0500
  Re: One line command line filter Peter Otten <__peter__@web.de> - 2011-09-06 09:53 +0200

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