ubutnu 彻底删除软件

以composer为例子：

第一步： 删除软件本体 <pre style=”\"margin-top:” 10px;=”” padding:=”” 0px;=”” line-height:=”” 29px;"=””>

sudo apt-get remove –purge composer 

</pre>

第二步：

清理安装包和依赖

sudo [apt-get](\"https://www.baidu.com/s?wd=apt-get&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1dWrAP-nWuhrj-hPvn4uWmk0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3En1fYnWndPjcd\") autoremove
sudo [apt-get](\"https://www.baidu.com/s?wd=apt-get&tn=44039180_cpr&fenlei=mv6quAkxTZn0IZRqIHckPjm4nH00T1dWrAP-nWuhrj-hPvn4uWmk0ZwV5Hcvrjm3rH6sPfKWUMw85HfYnjn4nH6sgvPsT6KdThsqpZwYTjCEQLGCpyw9Uz4Bmy-bIi4WUvYETgN-TLwGUv3En1fYnWndPjcd\") clean

第三步：

清理配置文件

dpkg -l |grep ^rc|awk \'{print $2}\' |sudo xargs dpkg -P