Question

下面是我的代码，但它没有按我想要的输出。我想打印单词及其出现次数如下： anish 3 manish 4

 echo -n "ENTER FILE NAME:"
    read file
    while read -r -a word <$file; do
    if [ $# -ne 1 ] 
    then
        for word in $line; do
         # echo " $word = ${#word[*]}"

p=0    
                done


echo "$word = ${#word[*]}"


 fi

break


done

Answer 1

如果你可以使用更强大的shell，比如bash，你可以这样做：

$ declare -A words    # an associative array, not POSIX

$ while read word; do let "words[$word]++"; done <<END
anish
manish
anish
manish
anish
END

$ for key in "${!words[@]}"; do echo "$key ${words[$key]}"; done
manish 2
anish 3

在不使用命令的情况下计算shell中文件中单词的出现次数

1 个答案: