linux_shell编程总结（二）函数

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关于shell函数的总结

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先看一个例子，之后根据例子讲解。

#! /bin/bashfs(){    totalSize=0    dirName=$1    # ls $dirName | cat |    #while read line    for line in `ls $dirName | cat`    do        fileName="$dirName/$line"        if [ -d $fileName ]            then            size=`fs $fileName`        else            set - `ls -l $fileName`            size=$5        fi        let totalSize=$totalSize+$size    done    echo $totalSize}directoryName=$1total=`fs $directoryName`echo "total=$total"