Shell编程之函数调用

Shell中的函数调用的使用方法见我下面的代码示例：

#!/bin/bash



# value init



ExP="adb shell /data/local/tmp/vpxdec  --yv12 --flipuv  -t 2 --md5   data/local/tmp/vp9Input/subset_function_test/Boating_1920x1080_t4_yv12_400frames_skip200.webm";

TT="adb shell ls -l /data/local/tmp/";

loop_count=2;

targetMd5="2e8698fe47dd40bf6260206416530985";



# Compare two value and output result，$1 is src,$2 is target

function Compare()

{

    #echo "Source value:$1, Target value:$2";

    if [ "$1" = "$2" ]; then

            echo "The same!";

        return 0;

    else

            echo "Different!"

        return 1;

    fi

    

}



# LoopEx: excute a programm in a loop, $1 is program,$2 is loop count, $3 is targetMd5

function LoopEx()

{

    local Ex=$1;

    local loop_count=$2;

    local target=$3;

    echo -e "Programm is $Ex \nloop_count ==$loop_count, TargetMd5==$target"

    for i in $(seq $loop_count); do

        local output=$($Ex);

        local outputMd5=${output:0:32}

        Compare $outputMd5 $target;

        if [ "$?" != "0" ]; then

            echo "Loop Break index is [$i],result MD5:$outputMd5"

            break

        fi

    done;

}



# function main, shell excute from here

function Main()

{

    echo "Imagation GPU Version test run ...";

    LoopEx "$ExP" $loop_count $targetMd5

}



Main;

后面写其他的简单脚本可以套用这个模板来做