python script for Arch based distro : check loaded kernel, pacman latest kernel and show in color if they the same (green) or different (red).

check_kernel_version.py

#!/usr/bin/env python3
import subprocess
import re

PACMAN_KERNEL_VERSION = subprocess.getoutput("pacman -Qi linux | sed -n -e '/Version/p'").split(':')[1].strip().split('.')
RUNNING_KERNEL_VERSION = subprocess.getoutput("uname -a") .split(' ')[2].strip().split('.')

if len(RUNNING_KERNEL_VERSION) != 4:
    tmp=re.split(r'-', RUNNING_KERNEL_VERSION[-1],1)
    RUNNING_KERNEL_VERSION[-1] = tmp[0]
    RUNNING_KERNEL_VERSION.append(tmp[1])

names = [
     'Kernel Version',
     'Major Revision',
     'Minor Revision',
     'Patch number']

# define colors 
RED = '\033[31m'   # mode 31 = red forground
GREEN = '\033[32m' # mode 32 = green forground
RESET = '\033[0m'  # mode 0  = reset

print('{:14} : {:8} : {:7}'.format('number','pacman','running'))
print('-'*35)
for k,p,r in zip(names,PACMAN_KERNEL_VERSION,RUNNING_KERNEL_VERSION):
    if p == r:
        print(f'{GREEN}{k:14} : {p:7} == {r:7}',RESET)
    else:
        print(f'{RED}{k:14} : {p:7} != {r:7} <-- DIFFERENT!','-'*20,RESET)
print('-'*35)