nohup appname & > appname.out
More info here.
Related stuff:
Ctrl-z pauses a foreground running task
bg pid – put it into the background
Changing the gpu / main memory split on the Raspberry Pi
The memory allocation to the gpu is defined in /boot/config.txt using the gpu_mem property.
Minimum is 16, default is 64. If you’re running graphics intensive apps on the Pi you can increase this value. If you’re running in headless mode then you can decrease it to 16 or 32.
More info here.
chmod on directories
Directories in unix/linux need the +x execute permission to function correctly as a directory. If you accidentally remove it, then you won’t be able to cd into the directory.
Linux listing directories
ls -d */