这几天在安装一些软件时,版本总有这样或那样的问题,这就是开源的痛苦之处,总是有版本的问题,很难像windows那样可以很好的兼容,所以常常需要安装和卸载,有时安装了一系列相关的rpm包,卸载却只能一个一个的卸,很烦,所以自己写了个批处理,感觉还蛮好用的,现共享给大家:
	
	#!/bin/bash
	#
	#  function: batch uninstall rpm packages
	#  setup:
	#         1. copy the scripts and save as a file, such as: ex.sh
	#         2. switch to root user. su - root
	#         3. change the file's permission: chmod +x ex.sh
	#         3. running the script with no parameter: ./ex.sh
	#  runing:
	#        uninstall [rpm package name]
	#  author: Topurce Zhou (topurce#at#hotmail.com)
	#
	if [ "$UID" -ne 0 ]
	then
	echo -e 'must be \E[34m\033[1mroot\033[0m to run this script.'
	echo -ne '\E[0m'
	exit 67
	fi
	if [ ! -f /usr/bin/uninstall ]
	then
	echo "building file..."
	scripts="$(cat $0)"
	declare -i index=1
	cat $0 | while read line
	do
	if (( index == 19 ))
	then
	echo 'echo -e "must be \E[34m\033[1mroot\033[0m to run this script."'>>/usr/bin/uninstall
	echo 'echo -ne "\E[0m"'>>/usr/bin/uninstall
	elif (( index == 23 ))
	then
	echo 'stips="searching packages for \"$1\":"'>>/usr/bin/uninstall
	echo 'usage="usage: $0 \"package name\""'>>/usr/bin/uninstall
	elif (( index != 19 && index != 20 && (index<23 || index>52) ))
	then
	echo $line>>/usr/bin/uninstall
	fi
	index+=1;
	done
	chmod +x /usr/bin/uninstall
	echo "try \"uninstall [package name]\" again."
	exit
	fi
	stips="searching packages for \"$1\":"
	usage="usage: $0 \"rpm package name\""
	if [ $# -eq 0 ]
	then
	echo "$0: no rpm packages given for uninstall."
	echo $usage
	elif [ $# -gt 1 ]
	then  
	echo $usage
	else
	echo $stips
	rpms="$(rpm -qa | grep $1)"
	declare -i count=0
	for rpmk in $rpms
	do
	count+=1
	echo "package: $rpmk"
	done
	if (( count == 0 ))
	then
	echo "no packages"
	exit
	fi
	echo "packages: $count"
	echo
	read -p "are you sure you want to uninstall all above packages?(y/n)"
	if [[ $REPLY == [Yy] ]]
	then
	echo "starting to uninstall packages..."
	for rpmk in $rpms
	do
	count+=1
	echo "uninstalling package: $rpmk"
	rpm -e --nodeps $rpmk
	if [ $? -eq 0 ]
	then
	echo "done"
	else
	echo "faild to uninstall $rpmk"
	fi
	done
	fi
	fi
	
	将上面的代码复制,然后保存到一个文件,并修改文件属性为可执行。然后以root身份执行之后,这个代码会将自己安装到/usr/bin/uninstall
这样,你就可以执行uninstall [包名] 进行批量卸载了,这里的包名是模糊查询,并且在正式卸载之前会提醒你确认的,所以多了一层保护,以免错删。

