uname command

The command uname helps us in development special in scripts, see help of the uname

uname --help

Usage: uname [OPTION]...

Print certain system information.  With no OPTION, same as -s.

-a, --all                print all information, in the following order,

except omit -p and -i if unknown:

-s, --kernel-name        print the kernel name

-n, --nodename           print the network node hostname

-r, --kernel-release     print the kernel release

-v, --kernel-version     print the kernel version

-m, --machine            print the machine hardware name

-p, --processor          print the processor type or "unknown"

-i, --hardware-platform  print the hardware platform or "unknown"

-o, --operating-system   print the operating system

--help     display this help and exit

--version  output version information and exit

I use uname –r to find the current kernel release version. For example, the Makefile.

obj-m += xxx.o

all:

make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules

clean:

make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean

When typing make, the output is

make -C /lib/modules/4.4.0-141-generic/build M=/home/??/Documents/xxx modules