dpkg –configure -a命令报错’ldconfig’、’start-stop-daemon’和expected programs not found

dpkg: warning: 'ldconfig' not found in PATH or not executable
dpkg: warning: 'start-stop-daemon' not found in PATH or not executable
dpkg: error: 2 expected programs not found in PATH or not executable
Note: root's PATH should usually contain /usr/local/sbin, /usr/sbin and /sbin

原因：使用非root用户su后进行安装，所以导致参数和环境无法传递的问题
解决方法：给sudo命令加入参数，使用-p
sudo -p xxx你要执行的命令