Java executes a problem with a redirect or Pipe shell command __java

The Java Execution Shell command has not been used before, and it is thought to be as convenient as C, and can be done with a system function. It's not that much of a problem today. There are two ways of executing shell commands in Java:
1. Use of Processbuilder

Processbuilder pb=new processbuilder (cmd); 
Pb.start ();

2. Use of runtime

Runtime.getruntime (). EXEC (CMD)

But both of these methods have a problem, such as: Ps-ef | grep-v grep commands with pipes or redirects can be faulted. We all know that using both methods to execute a command, if you have parameters to split the command into a group or list, it will be executed as a whole (error, such as "ps-e"). For |,<,>, this is not going to work either. For Linux systems, the solution is to pass the entire command as an sh parameter and use SH to execute the command.

list<string> Cmds = new arraylist<string> (); 
Cmds.add ("sh"); 
Cmds.add ("-C"); 
Cmds.add ("Ps-ef | Grep-v grep "); 
Processbuilder=new Processbuilder (CMDS); 
Process p = Pb.start ();

Windows to replace SH cmd.exe on the line.

Ps:linux under test is available, windows you can test yourself