cmd seems working

include/buffer.h

include/cmd.h

include/mycanvas.h

include/myclock.h

include/myio.h

src/Makefile

src/first.map

src/libsrc/buffer.c

src/libsrc/bwio.c

src/libsrc/cmd.c

src/libsrc/mycanvas.c

src/libsrc/myclock.c

src/libsrc/myio.c

src/startup.c

src/stop.c

src/tr.c

src/tricks.c