shell实现把一个目录的文件拷贝到另一个目录

shell实现把一个目录的文件拷贝到另一个目录，如果文件重复，则覆盖之。

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version 1:

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#!/bin/bashif [ $# -lt 2 ]; then echo "Error !!!This shell file is used to copy files under a directory to another. Please pass two arguments to it.The first argument is for the source directory and the second for destination directory " > /dev/ttyexit 1fisrc=$1des=$2tsrc=$(echo $src | awk 'gsub("/", "\/")')tdes=$(echo $des | awk 'gsub("/", "\/")')#echo $tsrcfind  $src -type f | while read linedotf=$(echo $line | sed "s/$tsrc/$tdes/")td=$(dirname $tf)if [ ! -d $td ]; thenmkdir -p $tdficp $line $tfdone

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version 2:

#!/bin/bashif [ $# -lt 2 ]; then echo "Error !!!This shell file is used to copy files under a directory to another. Please pass two arguments to it.The first argument is for the source directory and the second for destination directory " > /dev/ttyexit 1fisrc=$1des=$2src_len=$(echo $src | awk '{ print length($1) }')let "src_len=$src_len + 1"find  $src -type f | while read linedotf=$des$(echo $line | awk -v pos=$src_len '{ print substr($1, pos) }')td=$(dirname $tf)if [ ! -d $td ]; thenmkdir -p $tdficp $line $tfdone