Package: xfce4-appfinder

"xfce4-appfinder" package binaries on CentOS:

/usr/bin/xfce4-appfinder

You may install this package on CentOS with yum install xfce4-appfinder

"xfce4-appfinder" package binaries on Debian:

/usr/bin/xfce4-appfinder /usr/bin/xfrun4

You may install this package on Debian with apt-get install xfce4-appfinder