[0] Linus Torvalds	[1] linux.org	[2] kernel.org	[3] linuxcommand.org	[4] linux-command-manual.	[5] ie.drivers_linux	[6] unix-tutorialspoint	[7] linux-commands
[8] linuxdocs.org	[9] driver-api.kernel.org	[10] linux-command.github