分支条件匹配

mode=$1
case "$mode" in
'01')
start-01.sh
;;
'02')
start-02.sh
;;
'03')
start-03.sh
;;
'04')
start-04.sh
;;
'05')
start-05.sh
;;
  *)
# usage
basename=`basename "$0"`
echo "Usage: $basename [01|02|03|04|05]"
exit 1
;;
esac