Java runtime.exec invoke linux SCP command copy directory on remote machine failed __ function

1. Requirements: Need to copy from A machine directory to B machine, and then from B machine copy directory to C machine.

2. Implementation: Run a Java program on the B-Machine and invoke the Linux SCP command to implement it.

3. Question:

Copy directory from a machine to B machine success, but from B machine copy directory to C machine failed, almost the same format command, but the command can be executed directly in Linux, with Runetime.exec call is an error.

Such as:

//This command can be successfully executed .

Runtime.exec ("Scp-r root@192.168.1.11:/ps_test/indexes/*/ps_temp/indexes/");

//The command failed to execute

Runtime.exec ("Scp-r/ps_temp/indexes/* root@192.168.1.13:/ps_test/indexes/");

4. Solution:

//Change the second command to:

Runtime.exec ("Scp-r/ps_temp/indexes root@192.168.1.13:/ps_test/indexes/");

That is, the "/*" can be removed