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Hi all,

My question can be very stupid, but I want to execute some shell commands with a pipe ( | ) like that :
os.execute(ps aux | grep my_program) or a generic way :
os.execute("my_command" "my_args" | another_command | ....)

And another simply question : How to don't return exit code if function even return string, for example
io.write(os.execute("pwd")) return this

Thanks a lot.