判断文件中数字大小字母开头的单词

#!/bin/sh

sum0=0
sum1=0
sum2=0
wordlist=`cat test.txt`
for word in $wordlist
do
 case $word in
  [0-9]*)
   sum0=`expr $sum0 + 1`
   ;;
  [a-z]*)
   sum1=`expr $sum1 + 1`
   ;;
  [A-Z]*)
   sum2=`expr $sum2 + 1`
   ;;
  *)
   ;;
 esac
done

echo sum0=$sum0
echo sum1=$sum1
echo sum2=$sum2