Great content! Many thanks, Dr! I am so glad I found your channel. I m a newbie at the Unix shell. I probably spent 5 hours on this 30-mins video but I learned a lot! I wonder if there are any books on Unix that you would recommend for beginners like me?
it was to make stdin(0),stdout(1),stderr(2) three all are open and connected to the device "console" for the sh process, so we could input from keyboard (qemu virtualize this device and connect it to the "console") and sh could output to "console".
I don't use paper and pen because it brings me joy. It's just faster and more flexible. I use computers when and where they improve my life. Messing with some GUI is not particularly fun IMHO and distracts from the real content.
