Plan 9 from Bell Labs’s /usr/web/sources/plan9/sys/src/cmd/db/mkfile
</$objtype/mkfile TARG=db OFILES=\ command.$O\ expr.$O\ format.$O\ input.$O\ main.$O\ output.$O\ pcs.$O\ print.$O\ runpcs.$O\ setup.$O\ regs.$O\ trcrun.$O\ HFILES=defs.h\ fns.h\ BIN=/$objtype/bin < /sys/src/cmd/mkone