对指定目录下的文件进行筛选，并重命名拷贝到另一个目录

#!/bin/bash

# ./test.sh ./test jpg

if [ "$#" -ne "2" ]
then
    echo "error argument, format: file path + file type"
    exit
fi

cd $1
echo "$1"
SRC_PATH="$1"
ICON_TYPE="$2"
BASE=`pwd`
NUM=1
#echo "$BASE"
set `date`
DST_PATH="$BASE/$2_$3_$5_OUT"
echo "$DST_PATH"
mkdir $DST_PATH

for filename in `ls ./ | grep $ICON_TYPE `
do
    echo "$filename"
    cp $filename "$DST_PATH/$NUM.$ICON_TYPE"
    (( NUM = NUM +1 ))
    echo "$NUM"
done
cd ..