用例：
需求：星火维护的某wine应用，希望在卸载时自动删除用户目录下的容器，而直接在postrm写入则会在升级时也删除容器。需要判断到是在卸载或者完全卸载时再删除
相关内容：链接中：
The postrm script may be called in the following ways: postrm remove postrm purge old-postrm upgrade new-version disappearer’s-postrm disappear overwriter overwriter-version
所以在postrm前加入判断
if [ "$1" = "remove" ] || [ "$1" = "purge" ];then
即可实现在升级的时候不删除，在卸载时删除
代码例子：
#!/bin/bash
if [ "$1" = "remove" ] || [ "$1" = "purge" ];then
echo "清理卸载残留"
for username in `ls /home`
do
echo /home/$username
if [ -d /home/$username/.deepinwine/Wine-QQ ]
then
rm -rf /home/$username/.deepinwine/Wine-QQ
fi
if [ -d /home/$username/.deepinwine/Wine-QQ.tmpdir ]
then
rm -rf /home/$username/.deepinwine/Wine-QQ.tmpdir
fi
done
else
echo "非卸载，跳过清理"
fi
代码来源：spk://store/chat/com.qq.im.dwine
即将更新的9.6.0.1hf3版本会解决运行卡顿的问题。暂时没有上线spark_run_v4.sh，需要在更新时删除旧的容器体验