通过bash脚本scp一堆文件：必须有更好的方法

Question

I currently have the following bash script:

for a in `seq 16 75`; 
do scp doneill@server:/mnt/device/folder/numbered_file$a.txt ./; 
done;

while this does work, it is very slow. Each file, the request to the sever takes about 4-7 seconds, then sending the file takes another 3 or so seconds.

Is there a way to do this that involves only 1 command sent to the server (to minimize the time my VPN spends sending receiving each individual command)? Normally, I would do something like scp doneill@server:/mnt/device/folder/numbered_file* but there are many thousands of files in the folder that I don't want to copy. I need to get only those few (defined by the sequence).

Answer 1

在bash中：

scp doneill@server:/mnt/device/folder/numbered_file{16..75}.txt ./

Answer 2

rsync should do the trick: http://www.manpagez.com/man/1/rsync/

You may have to fiddle a bit with the parameters, but done right, it's probably the fastest way of transferring files over ssh.

Answer 3

这适用于bash吗？

scp doneill@server:/mnt/device/folder/numbered_file{16..75}.txt ./