I have an USB stick with Arch Linux on it. From time to time, I boot
my machine using this stick in order to do a system update.
I just realized I can do this:
1 $ sudo qemu-system-x86_64 -enable-kvm -cpu host -m 2048 -smp 4 -drive file=/dev/sdc,format=raw
No need to shut down my running system.
For a very long time, I used tabs to indent code. About three years
ago, I switched to "indent with tabs, align with spaces".
What's the benefit of using tabs? I don't know. I see no benefit in
using them anymore. Today's editors are very well capable of using
"smart tabs": Press the tab key, but insert spaces; press backspace
once, but delete as many spaces as needed to get to the previous
Plus, when you use only spaces, your code looks the same everywhere.
See, I was using tabs to indent code together with a line length limit
of 80 characters -- but my Vim was configured with a tab width of 4
(because the default of 8 looks horrible), which made no sense at all.
Now that I'm using only spaces, there's no ambiguity anymore.
(Took me a long time to figure that out. Hum.)