linux下统计文本行数的各种方法（二）

上一篇讲的都是统计单个文件的方法，直接在命令行执行就可以。现在试试脚本的方式，统计多个文件的行数

一、统计目录下所有文件的文件数及所有行数

脚本暂时命名为count.sh，代码如下：

#!/bin/bash
# 计算当前或者指定目录的文件数目及所有文件的行数
fileCount=0
linesCount=0

function funCount(){
        for file in `ls $1`
        do
                if [ -d $1"/"$file ];then
                        funCount $1"/"$file
                else
                        #declare -i 定义整型变量fileLines
                        declare -i fileLines
                        #使用的是上一篇中的一种方法，可以灵活使用其他任何一种(grep awk wc -l等)
                        fileLines=`sed -n "$=" $1"/"$file`
                        #let是整数运算，linux中整数运算一般通过 let 和 expr 这两个指令来实现
                        #如对变量 x 加 1 可以写作：let "x = $x + 1" 或者 x=`expr $x + 1`
                        #个人感觉，二者差不多，前者表达比较简单，择优用之，具体可以在看专门的对比帖子
                        let linesCount=$linesCount+$fileLines
                        let filesCount=$filesCount+1
                fi
        done
}

if [ $# -gt 0 ];then
        for m_dir in $@
        do
                funCount $m_dir
        done
else
        funCount "."
fi
echo "filesCount = $filesCount"
echo "linesCount = $linesCount"

1，统计当前目录的文件数及所有行数

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2，统计指定文件目录的文件数及所有行数

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二、统计目录下所有文件的文件数及所有行数，并指出文件路径和文件类型

脚本暂时命名为helloworldCount.sh，代码如下：

#!/bin/bash

extens=(".c" ".cpp" ".h" ".class" ".hpp" ) #这个array为空其实一样

filesCount=0
linesCount=0
function funCount(){
        for file in `ls $1`
        do
                if [ -d $1"/"$file ];then
                        funCount $1"/"$file
                else
                        fileName=$1"/"$file

                        EXTENSION="."${fileName##*.}
                        #echo "------"$EXTENSION
                        # ${fileName##*.} 截取.之后的部分
                        echo "fileName = $fileName Extension = $EXTENSION"

                        #if [[ "${extens[@]}/$EXTENSION/}" != "${extens[@]}" ]];then
                        #echo "--------"${extens[@]}/$EXTENSION/
                        #echo "--------"${extens[@]}
                        #/ 用来拼接多个变量并组成一个array
                        if [[ "${extens[@]}/$EXTENSION/}" != "${extens[@]}" ]];then
                                declare -i fileLines
                                fileLines=`sed -n "$=" $fileName`
                                echo $fileName":"$fileLines
                                let linesCount=$linesCount+$fileLines
                                let filesCount=$filesCount+1
                        fi
                fi
        done
}

if [ $# -gt 0 ];then
        for m_dir in $@
        do
                funCount $m_dir
        done
else
        funCount "."
fi

echo "filesCount = $filesCount"
echo "linesCount = $linesCount"

1，统计当前目录的文件数及所有行数

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alt="" />

2，统计指定文件目录的文件数及所有行数

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" alt="" />

脚本中涉及到的知识点罗列如下：

1，declare -i 定义整型变量fileLines
2，let是整数运算，linux中整数运算一般通过 let 和 expr 这两个指令来实现，如对变量 x 加 1 可以写作：let "x = $x + 1" 或者 x=`expr $x + 1`，个人感觉，二者差不多，前者表达比较简单，择优用之，具体可以在看专门的对比帖子
3，${fileName##*.} 截取.之后的部分
4，/ 用来拼接多个变量并组成一个array

参考来源：http://www.jb51.net/article/61943.htm