platform independent piped input stream from system call

[Danny Challis]

Hi all,
I want to get an input stream from a system command in this manner:

f = open("|ls")
while( [not end of output] )
f.gets
end

but I would like it to be platform independent. The output of the
command I'll be using is massive (hundreds of GB) so I cannot load to
memory or write to a temp file. Is there a good platform-independent way
to do this?

Thanks!

Danny.

 

[Jeremy Bopp]

Hi all,
I want to get an input stream from a system command in this manner:

f = open("|ls")
while( [not end of output] )
f.gets
end

but I would like it to be platform independent. The output of the
command I'll be using is massive (hundreds of GB) so I cannot load to
memory or write to a temp file. Is there a good platform-independent way
to do this?

Check out IO.popen:

http://rdoc.info/stdlib/core/1.9.2/IO.popen

-Jeremy

 

[Danny Challis]

That is exactly what I was looking for! Thank you for pointing me in
the right direction!

Jeremy Bopp wrote in post #971324:

 

[Kaspar Schiess]

That is exactly what I was looking for! Thank you for pointing me in
the right direction!

And if that was good, this might be even better:
https://github.com/ahoward/open4

k