shell

对比二个目录下文件是否存在差异

#!/bin/bash
# V1.0
# 脚本开发 BUY EMAIL:"tzwken@126.com" QQ:286452529

. /etc/profile >/dev/null 2>&1
PATH="$PATH:/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin"

export LC_ALL=en_US.UTF-8
export LANG=en_US.UTF-8
export PATH
rc=0

usage_() {
            echo "Usage: $0 -m host1 -s host2 -p path      对比host1和host2的path目录下的文件"
            exit 1
}

while getopts "m:s:p:h" arg #选项后面的冒号表示该选项需要参数
do
    case $arg in
        m)
            host1=${OPTARG}
            ;;
        s)
            host2=${OPTARG}
            ;;
        p)
            path=${OPTARG}
            ;;
        h)
            usage_
            ;;
        ?)  #当有不认识的选项的时候arg为?
            echo "unkonw argument"
            exit 1
        ;;
    esac
done

shift $((OPTIND-1))

if [ "X${path}" == "X" ] || [ "X${host1}" == "X" ] || [ "X${host2}" == "X" ];then
    usage_
    exit 2
fi

host1md5=/tmp/.filediff_h1.md5
host2md5=/tmp/.filediff_h2.md5

ssh ${host1} "
if [ -d ${path} ];then
    cd ${path} && find -type f -exec md5sum {} ;
    for i in \`find -type l\`;do if [ -f $i ];then md5sum $i; elif [ -d $i ];then file $i;fi;done
fi
"|sort -k2 >${host1md5}

ssh ${host2} "
if [ -d ${path} ];then
    cd ${path} && find -type f -exec md5sum {} ;
    for i in \`find -type l\`;do if [ -f $i ];then md5sum $i; elif [ -d $i ];then file $i;fi;done
fi
"|sort -k2 >${host2md5}

if [ -f ${host1md5} ] && [ -f ${host2md5} ];then
    diff ${host1md5} ${host2md5}
fi
rm -f ${host1md5} ${host2md5}