https://foofish.net/daily-question3.html ...

#! /bin/bash#文件名：word_freg.sh#用途：计算文件中单词的词频 if [ $# -ne 1 ] then echo "Usage:$0 filename" exit -1fi filename=$1 egrep -o "\b[[:alpha:]]+\b ...

the kevin the is kevin 统计kevin.txt文件中出现的单词次数 第一种方法 ...

grep -E "\b[[:alpha:]]+\b" /etc/fstab -o | sort | uniq -c 或 awk '{for(i=1;i<NF;i++){count[$i] ...

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统计英文article.txt文件中出现hello这个单词的次数 这个是article.txt文件内容 { hello The Royal Navy is trying hello to play hello down the problem, after first ...

正则表达式之Pattern和Matcher，请参见转载博客 http://www.cnblogs.com/haodawang/p/5967219.html 代码实现： ...