Case3：通过read传参实现自定义输入内容和颜色plus_color.sh

通过read传参实现自定义输入内容和颜色plus_color.sh

#!/bin/bash
RED_COLOR='\E[1;31m'
GREEN_COLOR='\E[1;32m'
YELLOW_COLOR='\E[1;33m'
BLUE_COLOR='\E[1;34m'
PINK='\E[1;35m'
RES='\E[0m'
if [ $# -ne 2 ]
  then 
  echo "USAGE $0 content {red|yellow|blue|green}"
  exit 
fi
case "$2" in
  red|RED)
   echo -e "$RED_COLOR $1 $RES"
   ;;
  green|GREEN)
    echo -e "$GREEN_COLOR $1 $RES "
    ;;
  yellow|YELLOW)
   echo -e "$YELLOW_COLOR $1 $RES"
   ;;
  *)
   echo "USAGE $0 content {red|yellow|blue|green}"
   exit
   ;;
esac

测试 
sh plus_color.sh apple red