Question ( command line related )

How do you execute a .jar file on Windows without having the command line opening along with your program ? For Instance I am using a bat file that executes this command 'java -jar wahiki.jar' but when I click on it the program opens normally but the dos window remains. How can I avoid that ? Thanks a lot

Are you doing this from a batch file? If so, then you're going to see the command prompt window, regardless of the fact that you use javaw instead of java. (Oh, yes you are, I see now that I read your original post again).
By the way, you can also start your program by double-clicking on the executable JAR file in Windows, which is equivalent to running the command: javaw -jar myprogram.jar
Message was edited by:
jesperdj

Similar Messages

Design Question - Command Line Argument Processor

Folks,
I'm a java and OO newbie... I've been going through Sun's java tutorials
I've "enhanced" Sun's RegexTestHarness.java (using Aaron Renn's gnu.getopt package) to expose the various Pattern.FLAGS on the command line.
Whilst it does work the arguement processing code is awkward so I want to rewrite it... but I'm pretty new to OO, so before I spend days hacking away at a badly designed ArgsProcessor package I thought I'd run my deign ideas past the guru's... and atleast see if my ideas are impossible, or just plain bad.
Any comments would be greatly appreciated.
The starting point is RegexTestHarness.java/**
*@source : C:\Java\src\Tutorials\Sun\RegexTestHarness.java
*@compile : C:\Java\src\Tutorials\Sun>javac -classpath ".;C:\Java\lib\java-getopt-1.0.13.jar" RegexTestHarness.java
*@run     : C:\Java\src\Tutorials\Sun>java -classpath ".;C:\Java\lib\java-getopt-1.0.13.jar" RegexTestHarness -i
*@usage   : RegexTestHarness [-vcixmslud]
//http://java.sun.com/j2se/1.5.0/docs/api/java/io/package-summary.html
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.BufferedReader;
//http://java.sun.com/j2se/1.4.2/docs/api/java/util/regex/package-summary.html
import java.util.regex.Pattern;
import java.util.regex.Matcher;
import java.util.regex.PatternSyntaxException;
//http://www.urbanophile.com/arenn/hacking/getopt/gnu.getopt.Getopt.html
import gnu.getopt.Getopt;
import gnu.getopt.LongOpt;
* private command line options interpreter class
class Options {
     public boolean verbose = false;
     public int flags = 0;
     public Options(String progname, String[] argv) throws IllegalArgumentException {
          LongOpt[] longopts = new LongOpt[9];
          longopts[0] = new LongOpt("verbose",               LongOpt.NO_ARGUMENT, null, 'v');
          longopts[1] = new LongOpt("CANON_EQ",               LongOpt.NO_ARGUMENT, null, 'c');
          longopts[2] = new LongOpt("CASE_INSENSITIVE",     LongOpt.NO_ARGUMENT, null, 'i');
          longopts[3] = new LongOpt("COMMENTS",               LongOpt.NO_ARGUMENT, null, 'x');
          longopts[4] = new LongOpt("MULTILINE",               LongOpt.NO_ARGUMENT, null, 'm');
          longopts[5] = new LongOpt("DOTALL",                    LongOpt.NO_ARGUMENT, null, 's');
          longopts[6] = new LongOpt("LITERAL",               LongOpt.NO_ARGUMENT, null, 'l');
          longopts[7] = new LongOpt("UNICODE_CASE",          LongOpt.NO_ARGUMENT, null, 'u');
          longopts[8] = new LongOpt("UNIX_LINES",               LongOpt.NO_ARGUMENT, null, 'd');
          Getopt opts = new Getopt(progname, argv, "vcixmslud", longopts);
          opts.setOpterr(false);
          int c;
          //String arg;
          while ( (c=opts.getopt()) != -1 ) {
               //arg = opts.getOptarg();
               //(char)(new Integer(sb.toString())).intValue()
               switch(c) {
                    case 'v': verbose = true; break;
                    //http://java.sun.com/docs/books/tutorial/essential/regex/pattern.html
                    case 'c': this.flags |= Pattern.CANON_EQ; break;
                    case 'i': this.flags |= Pattern.CASE_INSENSITIVE; break;
                    case 'x': this.flags |= Pattern.COMMENTS; break;
                    case 'm': this.flags |= Pattern.MULTILINE; break;
                    case 's': this.flags |= Pattern.DOTALL; break;
                    case 'l': this.flags |= Pattern.LITERAL; break;
                    case 'u': this.flags |= Pattern.UNICODE_CASE; break;
                    case 'd': this.flags |= Pattern.UNIX_LINES; break;
                    case '?': throw new IllegalArgumentException("bad switch '"+(char)opts.getOptopt()+"'"); //nb: getopt() spits
     public String toString() {
          StringBuffer s = new StringBuffer(128);
          if (verbose) s.append("verbose, ");
          if ((this.flags & Pattern.CANON_EQ) != 0)               s.append("CANON_EQ, ");
          if ((this.flags & Pattern.CASE_INSENSITIVE) != 0)     s.append("CASE_INSENSITIVE, ");
          if ((this.flags & Pattern.COMMENTS) != 0)               s.append("COMMENTS, ");
          if ((this.flags & Pattern.MULTILINE) != 0)               s.append("MULTILINE, ");
          if ((this.flags & Pattern.DOTALL) != 0)               s.append("DOTALL, ");
          if ((this.flags & Pattern.LITERAL) != 0)               s.append("LITERAL, ");
          if ((this.flags & Pattern.UNICODE_CASE) != 0)          s.append("UNICODE_CASE, ");
          if ((this.flags & Pattern.UNIX_LINES) != 0)               s.append("UNIX_LINES, ");
          if (!s.equals("")) {
               s.insert(0,"{");
               s.replace(s.length()-2,s.length(),"");
               s.append("}");
          return(s.toString());
* public regular expression test harness
public class RegexTestHarness {
     public static void main(String[] argv){
          BufferedReader in = null;
          try {
               Options options = new Options("RegexTestHarness", argv);
               //System.out.println(options);
               in = new BufferedReader(new InputStreamReader(System.in));
               System.out.println("RegexTestHarness");
               System.out.println("----------------");
               System.out.println();
               System.out.println("usage: Enter your regex (none to exit), then the string to search.");
               System.out.println("from: http://java.sun.com/docs/books/tutorial/essential/regex/index.html");
               String regex = null;
               while(true) {
                    try {
                         System.out.println();
                         System.out.print("regex: ");
                         regex = in.readLine();
                         if (regex.equals("")) break;
                         Pattern pattern = Pattern.compile(regex, options.flags);
                         System.out.print("string: ");
                         Matcher matcher = pattern.matcher(in.readLine());
                         if (options.verbose) System.out.printf("groupCount=%d%n", matcher.groupCount());
                         while (matcher.find()) {
                              System.out.printf("%d-%d:'%s'%n", matcher.start()+1, matcher.end(), matcher.group());
                              //start is a zero based offset, but one based is more meaningful to the user, Me.
                    } catch (PatternSyntaxException e) {
                         System.out.println("Pattern.compile("+regex+") " + e);
                    } catch (IllegalStateException e) {
                         System.out.println("matcher.group() " + e);
               } //wend
          } catch (IllegalArgumentException e) {
               System.out.println(e);
          } catch (Exception e) {
               e.printStackTrace();
          } finally {
               try {in.close();} catch(Exception e){}
}... I haven't got a clue if it's possible, but I want my ArgProcessor.getArgs method to return a hash (keyed on name) of Objects of the requested "mixed" types... for example a boolean, a String, and a String[].
I want the client code of my new fangled ArgProcessor to look something like this:class testArgProcessor {
     public static void main(String[] args) {
          //usage testArgProcessor [-v] [-o outfile] file ...
          try {
               HashMap<Arguement> args = ArgProcessor.getArgs( args,
                    { //hasArg value, letter, name, type, value, default
                      {hasArg.NONE,     'v', 'verbose', 'boolean', true, false}
                    , {hasArg.REQUIRED, 'o', 'outfile', 'String', null, null}
                    , {hasArg.ARRAY,     '', 'filelist', 'String[]', null, null}
               if (args.outfile != null) {
                    out = new BufferedWriter(......);
               } else {
                    out = System.out;
               for (String file : filelist) {
                    if (args.verbose) System.out.println("processingFile: " + file)
                    ... process the file ...
          } catch (IllegalArgumentException e) { //from ArgProcessor.getArgs()
               System.out.println(e);
}

Paul,
What are you trying to do, and why?Sorry I should have made myself a lot clearer...
What I'm really trying to do is learn Java, and good OO design... so I'm going through the Sun tutorials, and I see that the standard Pattern class has a few handy switches, so I wanted to expose them to the command line... which I did using the handy gnu.getopts library...
Are you trying to write a general purpose
command-line processing library?Yes, I'm trying to write a general purpose command-line processing library? one that's "cleaner" to use than the gnu.getopts.
I've been hacking away for a few hours and haven't gotten very far... what I have discovered is that gnu.getopts class is in fact very clever (surprise surprise)... and my idea to "simplify" it's usage leads to loss of flexibility. So, I'm starting to think I'm completely barking up the wrong tree... and that I was somewhat vanglorious thinking that I (a newbie) could improve upon it.
Are you trying to write a command-line app to do
pattern matching?Yep, That too... That's where I started... with an example from Sun's tutorials... where it's used to parse a long series of patterns and strings, exploring java's regex capabilities.
I think I'll just give up on "improving" on gnu.getopts... my options processing code is ugly, and so be it.
Thanx for your interest anyway.
Keith.

Question about reading a string or integer at the command line.

Now I know java doesn't have something like scanf/readln buillt into it, but I was wondering what's the easiest, and what's the most robust way to add this functionality? (This may require two separate answers, sorry).
The reason I ask is because I've been learning java via self study for the SCJA, and last night was the first time I ever attempted to do this and it was just hellish. I was trying to make a simple guessing game at the command line, I didn't realize there wasn't a command read keyboard input.
After fighting with the code for an hour trying to figure it out, I finally got it to read the line via a buffered reader and InputStreamReader(System.in), and ran a try block that threw an exception. Then I just used parseInt to get the integer value for the guess.
Another question: To take command line input, do you have to throw an exception? And is there an easier way to make this work? It seems awfully complicated to take user input without a jframe and calling swing.
Edited by: JGannon on Nov 1, 2007 2:09 PM

1. Does scanner still work in JDK1.6?Try it and see. (Hint: the 1.6 documentation for the class says "Since: 1.5")
If you get behaviour that doesn't fit with what you expect it to do, post your code and a description of our expectations.
2. Are scanner and console essentially the same thing?No.
Scanner is a class that provides methods to break up its input into pieces and return them as strings and primitive values. The input can be a variety of things: File InputStream, String etc (see the Scanner constructor documentation). The emphasis is on the scanning methods, not the input source.
Console, on the other hand, is for working with ... the console. What the "console" is (and whether it is anything) depends on the JVM. It doesn't provide a lot of functionality (although the "masked" password input can't be obtained easily any other way). In terms of your task it will provide a reader associated with the console from which you can create a BufferedReader and proceed as you are at the moment. The emphasis with this class is the particular input source (and output destination), not the scanning.
http://java.sun.com/javase/6/docs/api/java/util/Scanner.html
http://java.sun.com/javase/6/docs/api/java/io/Console.html

Why not all jars picked up by ojdeloy and how to generate build.xml from command line and not JDEV GUI - quick question

Hi All
We have 11.1.1.7 ojdeploy to compile our app.
We notice in the log that not all jars are used in classpath arguments when we explicitly set them up for compilation.
eg:
<path id="classpath">
    <pathelement location="../../Oracle/Middleware/oracle_common/modules/oracle.adf.share_11.1.1/commons-el.jar"/>
    <pathelement location="../../Oracle/Middleware/oracle_common/modules/oracle.adf.share_11.1.1/jsp-el-api.jar"/>
    <pathelement location="../../Oracle/Middleware/oracle_common/modules/oracle.adf.share_11.1.1/oracle-el.jar"/>
    <pathelement location="interface/public_html/WEB-INF/lib/a.jar"/>
    <pathelement location="interface/public_html/WEB-INF/lib/b.jar"/>
    <pathelement location="interface/public_html/WEB-INF/lib/c.jar"/>
    <pathelement location="interface/public_html/WEB-INF/lib/d.jar"/>
</path>
Log Output -
[ora:ojdeploy] /path/to/Oracle/Middleware/jdk160_24/bin/javac
[ora:ojdeploy] -g
[ora:ojdeploy] -Xlint:all
[ora:ojdeploy] -Xlint:-cast
[ora:ojdeploy] -Xlint:-empty
[ora:ojdeploy] -Xlint:-fallthrough
[ora:ojdeploy] -Xlint:-path
[ora:ojdeploy] -Xlint:-serial
[ora:ojdeploy] -Xlint:-unchecked
[ora:ojdeploy] -source 1.6
[ora:ojdeploy] -target 1.6
[ora:ojdeploy] -verbose
[ora:ojdeploy] -encoding Cp1252
[ora:ojdeploy] -classpath
[ora:ojdeploy] /path/to/Oracle/Middleware/jdk160_24/jre/lib/resources.jar:
[ora:ojdeploy] /path/to/Oracle/Middleware/jdk160_24/jre/lib/rt.jar:
[ora:ojdeploy] /path/to/Oracle/Middleware/jdk160_24/jre/lib/jsse.jar:
    [ora:ojdeploy] /path/to/interface/public_html/WEB-INF/lib/a.jar"/>
    [ora:ojdeploy] /path/to/interface/public_html/WEB-INF/lib/c.jar"/>
1- Is it because it depends on how jpr or jws are configured ?
2- How can we automatically generate a build file of the application from command-line (as opposed to using Jdev IDE to click to generate a build.xml) ?

The first warning is happening because you're stating drivers for input devices without need. You haven't disabled hotplug so evdev gets used instead of kbd. This is normal, and you should change the driver line from kbd to evdev so that whatever options (if any) you've specified for the keyboard get parsed.
The second warning is about you not installing acpid.
The third I have no idea about, but look at the synaptics wiki. None of the (WW) are related to your video card.
And every card that has 2 or more output ports show up as "two cards". You also don't need to specify the pci port in xorg.conf. edit: this is the general case with laptops, might be different for desktops.
When I do lspci -v I get:
00:02.0 VGA compatible controller: Intel Corporation Mobile 945GME Express Integrated Graphics Controller (rev 03) (prog-if 00 [VGA controller])
Subsystem: Micro-Star International Co., Ltd. Device 0110
Flags: bus master, fast devsel, latency 0, IRQ 16
Memory at dfe80000 (32-bit, non-prefetchable) [size=512K]
I/O ports at d0f0 [size=8]
Memory at c0000000 (32-bit, prefetchable) [size=256M]
Memory at dff00000 (32-bit, non-prefetchable) [size=256K]
Expansion ROM at <unassigned> [disabled]
Capabilities: <access denied>
00:02.1 Display controller: Intel Corporation Mobile 945GM/GMS/GME, 943/940GML Express Integrated Graphics Controller (rev 03)
Subsystem: Micro-Star International Co., Ltd. Device 0110
Flags: bus master, fast devsel, latency 0
Memory at dfe00000 (32-bit, non-prefetchable) [size=512K]
Capabilities: <access denied>
And it doesn't matter if it errs in trying to sli up with it self. That's just not a possibility.
Last edited by gog (2009-10-15 23:59:49)

Command-line type itunes control - questions

Hello,
I'm writing a little tool with Applescript to control iTunes via command-line type interface. I have few general questions, thanks in advance for any answers. First I'll explain my idea, questions at the end. (If wrong forum, please tell me where to go)
The goal: to control music with as less hassle as possible. I listen music all day, have dozens of gigabites of it, and find mouse/iTunes interface too troublesome. Moodkiller whilst reading a book, for example.
Tool is pop-up dialog, with a single text field. Write something and hit enter -> search phrase or command interpreted and sent to iTunes as Applescript -> iTunes acts, and a new dialog pops up, ready for next command. (Enter with no text quits app)
Examples:
"oasis wonderwall"
Searches iTunes library and finds Wonderwall of Oasis. Displays a pop-up list of search matches, in this case just one song. Hit enter -> iTunes plays it. (If more results, I get to choose song from list.)
I find this quicker than to activate iTunes search box with mouse, enter search string, activate results pane with several TAB:s etc...
"trip-hop"
Searches an iTunes library, finding over two hundred "trip-hop" genre songs. This time just plays random song among results (thumb rule: if number of results > 100, behave that way, otherwise as above). Library continues playing from that point. Usually means you get to hear a lot of trip-hop. (could also make new trip-hop playlist)
">"
Command: skip to next song. ">>>" skips 3 songs at once, ">>>>" four songs etc
"<"+" increases three notches, "++" four etc.
Decrease volume, again "---" three notches etc.
"play", "pause", "stop"
Basic player commands, you name it.
"oasis wonderw >"
Searches song and adds it to end of current playlist (if more than one result, choose from list).
Other ideas too, but you propably got the point.
My questions:
1) Any applications currently doing this kind of job? With iTunes or other music players? (You can use Quicksilver for iTunes song searching, but I'm not certain if that's very handy or fast)
2) Would you use this kind of tool, if it were good? (just a theoretical question) If yes, how would you like to control it?
3) I have used Applescript's basic "display dialog" and "choose from list" commands, but would love more customized pop-ups (fancier song lists etc). Pointers to good scripting additions to accomplish this? Currently the entire tool is made with Applescript.
If this raises interest, I could post the tool somewhere. It's still very early draft, anyway.
Cheers,
O
Helsinki

Hi CofeeBreak,
Thank you for your comment, but I was able to find the problem (didn't solve it yet): In the FM command line interface, calling a HEX file located in a folder with brackets in its name, such as "C:\hello_World(V1)\LabVIEW.hex" will not be recognized by the FM.exe, whereas "C:\hello_World_V1\LabVIEW.hex" will work just fine. In the Flash Magic GUI and Command Line Manual section on hex files there is no mention of that, my solution at the moment is to remove the brackets from folder names.
Thanks
Amir

Command line questions....

I really have two questions here.
First, I have a small server that is very similar to this one I pulled off a tutorial:
public class MyServer{
// A bare-bones example: exception handling omitted.
   public static void main( String args[] ){
      ServerSocket serv;
      serv = new ServerSocket( 5150 );
      while ( true ) {
         Socket s;
         s = serv.accept();          // Wait for a connection
         handle_connection( s ); // Got one, now do something!
        s.close();
} When I run this program from the command line it goes into an infinite loop readily accepting connections.
For the most part, this is what I want. But how do I gracefully exit the program? Simply closing the command window seems drastic, not to mention the list of exceptions it throws.
Second question: Once I run my program, is there a way I can close the command line window and log off the computer without killing my program?
thanks.
(Running on NT)

How do you stop the program? You write another program that connects to the same socket and sends a message that both programs agree means "Shutdown". When the server receives this message, it shuts down nicely.
Now you want to run it as an NT service? I've seen people post links to a third-party package that can run a Java class as an NT service; I didn't note the link but you could probably find it by searching the forums.

Administration Port / command line / console gui question

In the Admin_ref.pdf doc it says "After enabling the administration port, all Administration Console traffic must connect via the administration port". Does this mean that you can no longer use the web gui console to manage the servers?
I would like the option to script deployments (deploy ears, stop start servers etc.) via command line to reduce the possibility of user error during routine deployments.
I do config mgmt. and am not a developer so I may be getting hung up on the language here.
Thanks,
gj

Hi
For first question the answer is no. With the administration port, you enable the SSL between the admin server and Node manager-managed Servers. You can still use the web console.
For teh second question, you can use ANT or can use the WLS Scripting ..you can get more details in dev2dev.bea.com
Jin

Java command line run code question?

hello all:
I met a question and want to get some suggestion from you.
I have one file TestOne.java located in
folder "c:\temp\aaa" which contains only one file(TestOne.java).
package samples.java2beginner.gui;
import java.io.*;
public class TestOne {
public static void main(String[] args) {
System.out.println("hello world");
}I use the following command to compile this java code:
c:\temp\aaa\javac TestOne.java // everything is ok.
In order to run this program, I have to manually create
folder hierarch "samples\java2beginner\gui" in "c:\temp\aaa" and
use the command
c:\temp\aaa\java samples.java2beginner.gui.TestOne to run this program.
My question is: is there any method that I can directly run
this java program without manually create "samples\java2beginner\gui"
which is annoying?
thank you

hello atmguy and DevMentee:
Thank you for your great suggestion.
I guess I didn't say my question clearly.
The class file compiled from TestOne.java is TestOne.class which cannot be modified.(so i cannot erase the package line or any kind of modification)
I want to run the java program from command line.
currently I have to create "samples\java2beginner\gui" and copy TestOne.class to there.
My question is: given one class file only(so you only get the TestOne.class),
do you have method to run it from command line?
so at this case you don't know which package the .class belongs to.
You might think my question is silly. The reason I posted the question because
I found problems when I use jode to decompiler a class file.
JODE is a java decompiler from jode.sourceforge.net
Given the above class file "TestOne.class", I cannot use jode to decompile it, because I have to run jode with the following method:
c:\temp\aaa\java jode.decompiler.Main -cp samples.java2beginner.gui.TestOne
which in fact is impossible given only .class file?
because the reason we use jode is to decompiler, how can you know the package
structure before decompile?!
so the problem came to my original question.
thank you all.

Audio guys, LAME command line question

Hey I know this is not the exact forum for this question but I figured you guys could help me better than anyone. I have a G5 running tiger server and a website that is recompressing uploaded MP3 files using LAME via command line. LAME seems to be mangling some of the files by creating distorted filed and 0 byte sized files. I am wondering is there an any other mac program that I can use to reencode mp3 files with the terminal and command line? LAME is said to be great but the files that are already at the frequency that I want (44.1) are converted ok but everything else is just mangled... any suggestions. Thanks!

I guess I'm looking for either:
a suggestion on why LAME might be messing up files, maybe someone wlse who had similar issues with LAME and found a fix
or
another mac program like LAME that I can run via command line through PHP to convert files.
I'll play with automator and see if the itunes option might work.
Thanks!

Sun Web Server 6 to 7 Command Line Migration - Syntax Question

I have used the GUI-based migration tool in a development environment and it works flawlessly. However, in prod environments I cannot use the GUI as a matter of policy. In reading the 6x to 7x migration guide, the following example is included for command-line based migrations:
wadm> migrate-server [--user=admin-user] [--passwordfile=*admin-pswd-file*][--host=admin-host][--port=admin-port][--no-ssl][--rcfile=*rcfile*][--echo][--no-prompt][--verbose][--search-collection-copy-path=directory][--log-dir=directory]([--all|[--config=newconfigname[--instance=instancename]) --server-root=path
In looking at my 6 and 7 web server instances, I cannot locate a password file or the rcfile. Is the password file optional? Do you have to create one or does the server generate this for you? Also, what is the rcfile and where would I find it?
Thanks!

As a rule, any option mentioned b/w [ and ] is optional.
Both password-file and rcfile are provided to avoid any prompts by the CLI.
For example if the password-file is provided (with the passwords) then the CLI will not prompt for the passwords. If not, the CLI will prompt for passwords.
In the rcfile you may set variables for path to the password file, user name, standard option values like config name, vs name, etc.
Find more details in http://blogs.sun.com/yamini/entry/starting_off_with_web_server.
For more details on the individual commands check out http://docs.sun.com/app/docs/doc/820-2204/6ndqrqrou?l=en&a=view

SQLLDR Command line arg question.

Is there a way to override , from the command line,
the table_name of the ...
INTO TABLE table_name
... clause of SQLLDR's LOAD statement?
ie.
If my control file looked like this ...
LOAD DATA
INFILE *
APPEND
INTO TABLE my_table_1
could I have data loaded into my_table_2 like so ...
sqlldr scott/tiger@test TABLE=my_table_2
... I know that TABLE= will not work. But is there
a way to do something like this?

oops! ignore this post

Newby question about command line interface

Arch is my first linux distro and havnt used others yet.
Just wondering, does Command Line Interface looks and functions all same on other distros?
Because, if u can chose desktop environment like KDE, GNOME and Xfce with other Linux distros as well, then what is difference between others.
Linux is still quite hard for me and just wanted to know if there is "special" stuff that arch can do.
To me, they all looks same with same desktop environment...
thanks

When you mention the "command line interface" (CLI) there are a few things involved: a terminal emulator, a shell, and the programs you have installed. That said, as far as running programs goes
The terminal emulator is the application that hosts/shows your shell. In KDE it's (by default) Konsole, GNOME uses gnome-terminal, others might use xterm, aterm, rxvt, rxvt-unicode or one of many others. Different emulators provide some extra features (e.g. tabs) and they all differ in memory usage, speed, and integration (or not) into a given desktop environment. That said, they all pretty much work the same for launching programs and operating in a shell: you type commands and press enter.
The shell is what runs your commands and also provides some scripting capabilities. Generally, bash seems to be the most used as a default shell. You can change your shell if you wish, as some shells provide extra features like programmable command completion. Other shells are lighter or more POSIX-compliant. For a starting user, you're well enough off just using the default (probably bash) until you find a reason for which you must have a different shell.
Finally, the programs installed will affect what you can run in a terminal. Different distros will have different quantities of programs installed by default. (Arch's base install is very minimal.)
Now, with regards to Linux, at the end of the day all distros are Linux with some desktop environment (DE) and some Linux apps. The DEs and applications are taken from the same source, but some distros provide patches for extra capabilities or configuation. However, if you see something you like in openSUSE, say, you can download the software, patch it, and configure your Arch to work like openSUSE. Each distro, though, has its own focus and philosophy which affects:
* how many and what applications are installed by default
* amount of configuration required after install
* stable vs. bleeding edge
You can read more about this in the wiki reference above.
So having said all that, Arch gives you a simple, minimal base install which you can then easily customize by app installation and configuration. It is reasonably bleeding edge, meaning application updates usually make it to Arch fairly quickly. With time and knowledge you can make Arch do near anything that another distro can do, but that's not really the idea behind Arch in my opinion.
Hope that helps,
j

Dumb question- how do I get to the command line without X running?

Hi,
As per the title please... I need to rerun Xorg -configure, but cannot for the life of me figure out how to shut down X and get to a command line
Thanks

Bes wrote:
Ctl alt and backspace just takes me out to the login screen.. from there I can't get to the terminal without X running.
Ctrl Alt F5 gets me to the command line, but I can't kill the X server
Thanks though
so with ctrl+alt+f5 you're at the console
log in if you need to, then
ps ax | grep gdm
4441 ? Ss 0:00 /usr/sbin/gdm-binary
4442 ? S 0:00 /usr/sbin/gdm-binary
4444 tty7 SLs+ 3:38 /usr/bin/Xorg :0 -audit 0 -auth /var/lib/gdm/:0.Xauth
6633 pts/0 S+ 0:00 grep gdm
kill 4444
the above example assumes gdm is your login manager so substitute whatever you're using, and you can kill the other instances of gdm (in my example processes 4441 and 4442 but don't waste your time on the grep process 6633
now redo your X config
(actually you could run this from a terminal from within X and it should have the same effect of dropping you back to console
Last edited by tj (2008-04-20 09:36:15)

DOS command line question

Hi, Isn't there a DOS command line symbol so that when javac returns all your syntax errors you can pause the screen before it blazes by your screen and you only catch the last few syntax errors. I thought it was javac whatever.java /p, but this doesn't work.
Thanks.......gemann

You might try
javac yourClass | more
but I seem to remember trying that without success.

Simple command line question

i was wondering if there is a way to include all jar files from a single directory on the classpath when running java app from the command line.
eg i am using this command:
java -cp ..\libs\jar1.jar;..\libs\jar2.jar;..\libs\jar3.jar;..\classes package.Main
what i want to be able to do is something like:
java -cp ..\libs\*.*;..\classes package.Main
i have tried using *, *.* and *.jar with no success. is it possible to do without setting environment variables etc.
thanks

>>
It may be more error prone, but it's stilleasier. I
use wildcards on the command line (and * in SQL)all
the time, with few or no problems.
Seriously this is a bad idea and you should stop
doing it.
You should always name your columns for SELECT (and
for INSERT as well). For SELECT queries it offers the
following benefitsSorry--I should have been more clear..
I dont' use * in production SQL--for the reasons you mentioned. But I do a lot of one-off queries for testing, debugging etc.
As for wildcards on the command line, again, for my daily putting around, there's not the risk that there is in production. In production, well, it may still be appropriate to use wildcards sometimes. You may actually want "everything in this directory, or that matches this pattern," where you don't know in advance what that will be. Regex comes to mind. :-)

Question ( command line related )

Similar Messages

Maybe you are looking for