#!/bin/bash
|
# transfer_4K_2_2K.sh
|
# param1: path-to-file
|
# param2: flash block size
|
|
input=$1
|
out=$2
|
|
function gen_file() {
|
filename=$1
|
output_file=$2
|
|
# get file align size
|
filesize=`stat -c "%s" $filename`
|
filesize=`expr $filesize + 2047`
|
filesize=`expr $filesize / 2048 \* 2048`
|
filesize_x2=`expr $filesize \* 2`
|
page_num=`expr $filesize / 2048`
|
|
echo $filesize $filesize_x2 $page_num
|
|
# gen file
|
`dd if=/dev/zero of=$output_file bs=1 count=$filesize_x2 > /dev/null 2>&1`
|
for ((i=0;i<$page_num;i++));
|
do
|
`dd if=$filename of=2KB bs=2K skip=$i count=1 > /dev/null 2>&1`
|
`dd if=2KB of=$output_file bs=4K seek=$i count=1 conv=notrunc > /dev/null 2>&1`
|
done
|
echo $filename": transfer_2KB_2_4KB success"
|
rm 2KB
|
}
|
|
if [ ! -f "$input" ]; then
|
echo "$input not exist!"
|
exit
|
fi
|
|
if [ -f "$out" ]; then
|
rm $out
|
exit
|
fi
|
|
gen_file $input $out
|
