Checking if at least a Kernel Version is Runnig in Bash

kernelatleast() { # provide number like 2639

kver=$(uname -r|cut -d\- -f1|tr -d '.'| tr -d '[A-Z][a-z]')

kver=${kver:0:4}

if [ $1 -ge $kver ] ; then

return 0;

else

return 1;

fi

}