$ dpkg -S '/etc/trinity/tdm/*' | awk '{print $2}' | while read p; do
file "$p"; done
/etc/trinity/tdm/Xreset: POSIX shell script, ASCII text executable
/etc/trinity/tdm/Xsetup: POSIX shell script, ASCII text executable
/etc/trinity/tdm/Xwilling: POSIX shell script, ASCII text executable
/etc/trinity/tdm/Xaccess: ASCII text
/etc/trinity/tdm/Xstartup: POSIX shell script, ASCII text executable
/etc/trinity/tdm/tdmrc: ASCII text
/etc/trinity/tdm/tdm.options: ASCII text
/etc/trinity/tdm/Xsession: POSIX shell script, ASCII text executable
/etc/trinity/tdm/backgroundrc: ASCII text
$ ls /etc/trinity/tdm
backgroundrc tdmrc Xreset Xsetup Xwilling
tdm.options Xaccess Xsession Xstartup