ubuntu 是16.04 LTS 64位。
错误信息如下：
$sudo dpkg -i sogoupinyin_2.1.0.0082_amd64.deb
Preparing to unpack sogoupinyin_2.1.0.0082_amd64.deb ...
Unpacking sogoupinyin (2.1.0.0082) ...
dpkg-deb (subprocess): cannot copy archive member from 'sogoupinyin_2.1.0.0082_amd64.deb' to decompressor pipe: unexpected end of file or stream
dpkg-deb (subprocess): decompressing archive member: lzma error: unexpected end of input
dpkg-deb: error: subprocess <decompress> returned error exit status 2
dpkg: error processing archive sogoupinyin_2.1.0.0082_amd64.deb (--install):
cannot copy extracted data for './usr/bin/sogou-qimpanel-watchdog' to '/usr/bin/sogou-qimpanel-watchdog.dpkg-new': unexpected end of file or stream
Errors were encountered while processing:
sogoupinyin_2.1.0.0082_amd64.deb
错误原因是下载过程出错，重新下载并安装（Ubuntu 16.04下安装不能安装搜狗输入法的问题：http://www.linuxdiyf.com/linux/23014.html），参考：
如果安装过程缺少依赖，使用：sudo apt-get -f install