Initial import from https://www.cs.princeton.edu/~bwk/btl.mirror/.

FIXES

README

awk.1

awk.h

awkgram.y

b.c

lex.c

lib.c

main.c

makefile

maketab.c

parse.c

proctab.c

proto.h

run.c

tran.c

ytab.c

ytab.h

ytabc.bak

ytabh.bak