清理Debian内核和头文件的脚本

改自bones7456清理ubuntu内核的脚本, 原文地址在此: http://li2z.cn/2010/02/28/clean_ubuntu_kernel/.

Debian和Ubuntu的包命名方式稍有不同, 不能直接用, 改了下, 再就是避免删除元包, 增加了响应输入的功能.

#!/bin/sh

CURRENT="`uname -r | awk -F"-" '{print $1"-"$2}'`"
HEADERS=""
IMAGES=""
ARCH="amd64"

for HEADER in `dpkg --get-selections | grep ^linux-headers | grep -v "${ARCH}" | awk -F"-" '{print $3"-"$4}'`
do
	if [[ "$CURRENT" < "$HEADER" ]]
	then
		echo "The running kernel is not the newest. $CURRENT < $HEADER"
		exit 1
	else
		[[ "$CURRENT" != "$HEADER" ]] && {
			HEADERS="${HEADERS} linux-headers-${HEADER}-${ARCH} linux-headers-${HEADER}-${ARCH}-common"
			IMAGE="`dpkg --get-selections | grep ^linux-image | grep "${HEADER}" | awk '{print $1}'`"
			IMAGES="${IMAGES} $IMAGE"
		}
	fi
done

if [[ -z "$HEADERS" ]]
then
	echo "There is no old kernel or headers need to be cleaned."
	exit 0
fi

echo
echo ------------------------------------
echo "$IMAGES $HEADERS"
echo ------------------------------------
echo

read -p "Really wanna remove these packages? [y/N] " REPLY

case $REPLY in
	y | Y )
		sh -c "sudo apt-get purge $IMAGES $HEADERS" ;;
	* )
		echo "The operation is cancelled." ;;
esac