Ubuntu Update remove shell script for old kernel

Ubuntu often prompt to update the kernel, update several times after the/boot directory is full, and then update the hint directory no space, this time you need to remove the old kernel, before all is uname, grep, dpkg and other commands to knock, and then use the eyes to see the need to Apt-get- Purge remove which versions of the kernel, later found on the Internet a small script, can automatically complete these actions, special records:

1 sudo ' linux-* ' sed ' /^ii/!d;/ ' "  "s/\ (. *\)-\ ([^0-9]\+\)/\1/")"'  /d;s/^[^]* [^]* \ ([^]*\). */\1/;/[0-9]/!d')

Ubuntu Update remove shell script for old kernel