根据文件大小或自定义次数进行复制

#!/bin/bash

cp $1 1mb$1
size=$(stat $1 |grep Size|awk '{print $2}')
while [ $size -le $2]
do

cat $1 >>1mb$1
size=$(stat 1mb$1|grep Size|awk '{print $2}')
done

#!/bin/bash

i=1

while [ $i -le $2 ]
do
cat $1 >>$2$1
i=$(( $i+1 ))

done


#!/bin/bash
#this is used to duplicate file to 1mb

for file in `find -name "PSH*.gz"`;
do
        name=` echo $file|cut -d / -f 2`
        echo $name
        cp $name 1mb$name
        size=$(stat $name |grep Size|awk '{print $2}')
        while [ $size -le 1200000 ]
                do
                        cat $name >>1mb$name
                        size=$(stat 1mb${name}|grep Size|awk '{print $2}')
                done
done