README              |    4 
 common/command.c    |  281 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 common/env_common.c |   41 +++++++
 common/main.c       |   12 ++
 include/command.h   |    9 +
 include/common.h    |    4 
 6 files changed, 351 insertions(+)