One line command line filter

Terry Reedy tjreedy at udel.edu
Tue Sep 6 03:25:44 CEST 2011


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 at 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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