grep

计算行数

加入 -c 参数即可显示行数

cat * | grep -c

参考资料

• Count all occurrences of a string in lots of files with grep - Stack Overflow

搜寻目录下指定字串

grep -r "[STRING TO SEARCH FOR]" "[DIRECTORY TO SEARCH]"

grep -r "search text" "/tmp/search/folder"

参考资料

• command line - how to find a word in text files from a directory - Ask Ubuntu