将不同扩展名的文件从一台服务器转移到Linux上的另一台服务器？

Question

Below are the files in my InputLocation in local server

-rw-r----- 1 root root 0 Sep 25 15:03 one.xml
-rw-r----- 1 root root 0 Sep 25 15:03 two.xml
-rw-r----- 1 root root 0 Sep 25 15:03 data.csv
-rw-r----- 1 root root 0 Sep 25 15:03 free.png
-rw-r----- 1 root root 0 Sep 25 15:04 loaded.jpeg

I am able to transfer files using the below command

scp ${InputPath}/*.{jpeg,xml} ${user}@${HostName}:$OutputPath

But i am trying to put the extns in a variable as below

FilesExtnsToBeTransfered=jpeg,xml
scp ${InputLocation}/*.{$FilesExtnsToBeTransfered} ${user}@${HostName}:$OutputPath

But i am getting the below exception though the files are available

InputLocation/*.{jpeg,xml}: No such file or directory

Any help please?

Answer 1

Saying:

FilesExtnsToBeTransfered=jpeg,xml
echo {$FilesExtnsToBeTransfered}

would result in {jpeg,xml} ( brace expansion would not be performed ).

You have two options:

1. (Ugly, not recommended): Use eval .

   eval scp ${InputLocation}/*.{$FilesExtnsToBeTransfered} ${user}@${HostName}:$OutputPath

2. Put the desired file extensions in an array:

 EXTNS=( jpeg xml ) for i in "${EXTNS[@]}"; do scp ${InputLocation}/*.$i ${user}@${HostName}:$OutputPath done