annotate
data
ed
include
man
    man/man1
    man/man3
    man/man5
    man/tutor
misc
new
qed
s1
s2
s4
tips
    tips/bin
    tips/hd
    tips/help.d
    tips/man
    tips/mlib
    tips/olib
    tips/qed.d
    tips/source
    tips/testdb
tmac
    tmac/man
    tmac/max
    tmac/misc
tty
usr_qed
    usr_qed/q
    usr_qed/qed
