static File getOrCreateCommandDir(RepositoryManager repositoryMgr) {
		File cmdDir = getCommandDir(repositoryMgr.getRootDir());
		if (!cmdDir.exists()) {
			// ensure process owner creates queued command directory
			cmdDir.mkdir();
		}
		return cmdDir;
	}
Process the specified command.
@param repositoryMgr server's repository manager
@param cmd command string
@throws IOException if IO error occurs while processing command
Ghidra/Features/GhidraServer/src/main/java/ghidra/server/CommandProcessor.java