[Haskell-cafe] Call external program and get stdout

[Thomas Hartman]

dons did a blog post about a "shell monad" which I think does what you ask.

http://cgi.cse.unsw.edu.au/~dons/blog/2007/03

very nice, I use it myself.

t.

2007/11/22, Maurí­cio <briqueabraque at yahoo.com>:
> Hi,
>
> How can I call a program (like, for instance,
> 'grep text *') and get the standard output?
> All actions I found (executeFile, system) do
> not give me the output of the program.
>
> Thanks,
> Maurício
>
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