mkdir ashell
mkdir assubs
mkdir bin
mkdir etc
mkdir ex-1.1
mkdir exrecover
mkdir eyacc
mkdir fpterp
mkdir lib
mkdir man1
mkdir man5
mkdir man6
mkdir man7
mkdir man8
mkdir opcodes
mkdir pcs
mkdir pi
mkdir portlib
mkdir px
mkdir pxp
mkdir pxref
mkdir s1
mkdir s6
mkdir s7
mkdir s8
mkdir tests
mkdir trek
mkdir ex-1.1/how_ex
mkdir ex-1.1/how_raw
mkdir exrefm
mkdir puman
mkdir help