FFMPEG: commandline options to recording audio from mic and speakers

I am using ffmpeg version 2.4.7 on Fedora-21 workstation. I want to record audio, simultaneously from microphone and speakers as separate streams. I am using the following command for it.

ffmpeg -f alsa -i pulse -f alsa -i default -acodec libmp3lame -map 0:0 -map 1:0 outfile.mkv

But after executing this command in terminal, I have to goto "Volume Control" settings in GUI, then goto "Recording" tab, change the "capture from" of one channel to "Built-in Audio Analog Stereo" (i.e., Microphone) and the "capture from" of another channel to "Monitor of Built-in Audio Analog Stereo" (i.e., Speakers).

But how can this be done completely from command-line, for automating it to use in scripts.