Java execution cmd command and Linux command

Source: Internet
Author: User
Tags file copy stringbuffer


One: Window under the execution of CMD specified

Program Examples:

/* This method implements the automatic file copy function. Copy the specified file name from the source path to the destination path      * Using system commands automatically create a destination path      */public static Boolean CopyFile if the destination path does not exist
    (String Origpath, String destpath, String filename) throws exception{String osname = System.getproperty ("Os.name");
    Boolean flag = false; /* System command-supported operating system Windows XP, 2003 7*/if (!) ( Osname.equalsignorecase ("Windows XP") | | Osname.equalsignorecase ("Windows 2000") | | Osname.equalsignorecase ("Windows 2003") | |
    Osname.equalsignorecase ("Windows 7")) {return flag;
    Runtime RT = Runtime.getruntime ();
    Process p = null;
    File F = new file (destpath);
    if (!f.exists ()) {f.mkdirs ();
    int exitval;
    p = rt.exec ("cmd exe/c copy" + origpath+filename+ "" +destpath); The export value of the process. 
    By convention, 0 indicates normal termination.
    Exitval = P.waitfor ();
    if (Exitval = = 0) {flag = true;
    }else{flag = false;    
    
return flag; }     public static void Main (string[] args) {        try {            CopyFile ("
D:\\data\\ "," d:\\a\\ "," 131204.txt ");         catch (Exception e) {            //TODO auto-generated catch block           
  E.printstacktrace ();        }               

  }


Second: Execute shell command under Linux

Program Examples:

Package edu.test;
Import Java.io.InputStreamReader;
	 
	Import Java.io.LineNumberReader;
	 /** * Java executes Linux commands in a Linux environment and returns the command return value.
	            * @author Lee */public class Execlinuxcmd {public static Object exec (String cmd) {try {
	            String[] Cmda = {"/bin/sh", "-C", CMD};
	            Process process = Runtime.getruntime (). exec (CMDA);
	            LineNumberReader br = new LineNumberReader (New InputStreamReader (Process.getinputstream ()));
	            StringBuffer sb = new StringBuffer ();
             String Line;
	                while (line = Br.readline ())!= null) {System.out.println (line);
	            Sb.append (line). append ("\ n");
	        return sb.tostring ();
	        catch (Exception e) {e.printstacktrace ();
	    return null;  public static void Main (string[] args) {//TODO auto-generated method stub String pwdstring = EXEC ("pwd"). ToString ();
	         
	        String netsstring = exec ("netstat-nat|grep-i \" 80\ "|wc-l"). ToString ();
	        System.out.println ("========== obtained value =============");
	        System.out.println (pwdstring);
	    System.out.println (netsstring); }
	 
	}
Execution results:



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