At least in Win7, Kristina&#39;s answer now seems to be either its memory of commands typed in the command lines, or the amount you can copy-paste.

To increase the scrollbar&#39;s memory, I did the following:

 - Go to properties as mentioned by Kristina
 - Go to the layout tab (that&#39;s the third one)
 - Modify the screen buffer size&#39;s height - 9999 is the maximum.

As mentioned by Joey in the comments to Kristina&#39;s answer, this will not work on things you&#39;ve already done - only on things you do after making the change.

*This answer was originally written when Kristina&#39;s was marked as accepted.  Now that this is the accepted answer, I&#39;ve edited my answer to avoid confusion.*

Just to complement the answer(s) above, its also possible to export the lines to a txt file
using `&gt; fileName.txt`

For example:

    myProgram.exe &gt; output.txt // will create a new file with all the output of myProgram

If you&#39;re using windows , click on the CMD icon in the top left corner and go to properties.

Click the Options tab.

In Command History, type or select 999 in Buffer Size, and then type or select 5 in Number of Buffers.


I am using emacs I find that sometimes I have 2 files separated into 2 windows.

For example:
I open 1 file using &lt;kbd&gt;C-x C-f file1.c RET&lt;/kbd&gt;

and I split the frame into two windows: &lt;kbd&gt;C-x 3&lt;/kbd&gt;

I then open another file &lt;kbd&gt;C-x C-f file2.c RET&lt;/kbd&gt;

So I have 2 files:

window 1 (left) `file1.c`

window 2 (right) `file2.c`

I am wondering if there is any key combination to swap the files over? Normally I like to work on the left window when I have 2 window. I know I can easily do &lt;kbd&gt;C-x o&lt;/kbd&gt;to move the cursor to the right window. 

However, I am just wondering if I can swap the files so that `file2.c` is in the left window and `file1.c` is in the right window?


How to swap the buffers in 2 windows emacs

I am wondering what is the best way to convert a json formatted key value pair to ruby hash with symbol as key:
example: 

    { &#39;user&#39;: { &#39;name&#39;: &#39;foo&#39;, &#39;age&#39;: 40, &#39;location&#39;: { &#39;city&#39; : &#39;bar&#39;, &#39;state&#39;: &#39;ca&#39; } } }
    ==&gt; 
    { :user=&gt;{ :name =&gt; &#39;foo&#39;, :age =&gt;&#39;40&#39;, :location=&gt;{ :city =&gt; &#39;bar&#39;, :state=&gt;&#39;ca&#39; } } }

Is there a helper method can do this?



what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?

Is there a possibility to get &quot;more&quot; lines into the command window (Console)?

When I debug my programs I output quite a bunch of lines to the window and the beginning of the ouput keeps disappearing out of the range I can scroll back the window so I don&#39;t see my complete output from the beginning of the program.

How can I get the command window to keep all lines?

(And yes I could as well write it into a text-file as a log, but I&#39;d like to try it like this for a change)

More lines in command window

Is there a possibility to get "more" lines into the command window (Console)?
When I debug my programs I output quite a bunch of lines to the window and the beginning of the ouput keeps disappearing out of the range I can scroll back the window so I don't see my complete output from the beginning of the program.
How can I get the command window to keep all lines?
(And yes I could as well write it into a text-file as a log, but I'd like to try it like this for a change)

I&#39;m writing a piece of honeypot software that will have extensive logging of interactions with it, I plan to log in plaintext `.log` files.

I have two questions, from someone who isn&#39;t too familiar with how servers log. 

1. Firstly how shall I break up my log files, I&#39;m assuming after running this for a month I don&#39;t want one big `.log` file, do I do this by day, month, year? Is there some standard for it?

2. The format of each line, do I have one standard delimiter that is whatever, *, -, +, anything? Is there a standard anywhere (my googling hasn&#39;t brought up much)?

What is the best practice for formatting logs?

I decided to use Log4J logging framework for a new Java project. 
I am wondering what strategy should I use for creating/managing Logger instances and why?

- one instance of Logger per class
e.g.

        class Foo {
            private static final Logger log = Logger.getLogger(Foo.class);
        }
- one instance of Logger per thread
- one instance of Logger per application
- horizontal slicing : one instance of Logger in each layer of an application (e.g. the view layer, the controller layer and the persistence layer)
- vertical slicing : one instance of Logger within functional partitions of the application 


Note: This issue is already considered to some extent in these articles:


[Whats the overhead of creating a Log4j Logger][2]


  [2]: https://stackoverflow.com/questions/771675/whats-the-overhead-of-creating-a-log4j-logger

Log4J: Strategies for creating Logger instances

I have some code-under-test that calls on a Java logger to report its status.
In the JUnit test code, I would like to verify that the correct log entry was made in this logger. Something along the following lines:

    methodUnderTest(bool x){
        if(x)
            logger.info(&quot;x happened&quot;)
    }

    @Test tester(){
        // perhaps setup a logger first.
        methodUnderTest(true);
        assertXXXXXX(loggedLevel(),Level.INFO);
    }

I suppose that this could be done with a specially adapted logger (or handler, or formatter), but I would prefer to re-use a solution that already exists. (And, to be honest, it is not clear to me how to get at the logRecord from a logger, but suppose that that&#39;s possible.)


How to do a JUnit assert on a message in a logger

I have a normal INFO level log for application. What I need is to additionally log all ERROR level events to separate error log. I am using configuration like this:

    &lt;logger name=&quot;com.acme&quot;&gt;
      &lt;level value=&quot;error&quot;/&gt;
      &lt;appender-ref ref=&quot;error&quot;/&gt;
    &lt;/logger&gt;

    &lt;logger name=&quot;com.acme&quot;&gt;
      &lt;level value=&quot;info&quot;/&gt;
    &lt;/logger&gt;

    &lt;root&gt;
      &lt;level value=&quot;warn&quot;/&gt;
      &lt;appender-ref ref=&quot;general&quot;/&gt;
    &lt;/root&gt;

This configuration logs errors only. If I put info level logger first, then it will log only to general appender, but error logger will not work. I would like to have them both working.

How to configure log4j to log different log levels to different files for the same logger

Is there any ready-to-use solution to log the memory consumption from the start of the system? I&#39;d like to log the data to simple text file or some database so I can analyze it later.

I&#39;m working on Linux 2.4-based embedded system. I need to debug the problem related to memory consumption. My application automatically start on every system start. I need the way to get the data with timestamps from regular intervals (as often as possible), so I can track down problem.

The symptoms of my problem: when system starts it launched my main application and GUI to visualize the main parameters of the system. GUI based on GTK+ (X server). If I disable GUI and X server then my application works OK. If I enable GUI and X server it does not work when I have 256 MiB or 512 MiB of physical memory installed on the motherboard. If I have 1 GiB of memory installed then everything is OK. 

How to log the memory consumption on Linux?

This is a probably an embarasing question as no doubt the answer is blindingly obvious.

I&#39;ve used Visual Studio for years, but this is the first time I&#39;ve done any &#39;Console Application&#39; development.

When I run my application the console window pops up, the program output appears and then the window closes as the application exits.

Is there a way to either keep it open until I have checked the output, or view the results after the window has closed?

Preventing console window from closing on Visual Studio C/C++ Console application

My `System.out.println()` and `System.err.println()` calls aren&#39;t being printed to the console in the order I make them.

	public static void main(String[] args) {
		for (int i = 0; i &lt; 5; i++) {
			System.out.println(&quot;out&quot;);
			System.err.println(&quot;err&quot;);
		}
	}

This produces:

    out
    out
    out
    out
    out
    err
    err
    err
    err
    err

Instead of alternating `out` and `err`. Why is this?

System.out.println and System.err.println out of order

I have an object I need to examine in IE8.
I tried the developer tools and `console.log`, their Firebug equivalent.
However, when I output the object to the log:

    console.log(&quot;Element: &quot;, element);
    console.log(element);

I only get the string

    LOG: Element: [object Object]

instead of a clickable, examinable dump.

Is it possible to dump an object to the Log and examine its members, like in Firebug?

I can&#39;t use a homemade dump() function because the element I want to examine is so huge the browser will crash on me. 



How do I dump JavaScript vars in IE8?

I have tried to write the console output to a txt file using this code suggestion ([http://www.daniweb.com/forums/thread23883.html#][1]) however I was not successful. What&#39;s wrong?

    try {
          //create a buffered reader that connects to the console, we use it so we can read lines
          BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
          
          //read a line from the console
          String lineFromInput = in.readLine();
          
          //create an print writer for writing to a file
          PrintWriter out = new PrintWriter(new FileWriter(&quot;output.txt&quot;));

          //output to the file a line
          out.println(lineFromInput);
          
          //close the file (VERY IMPORTANT!)
          out.close();
       }
          catch(IOException e1) {
            System.out.println(&quot;Error during reading/writing&quot;);
       }


  [1]: http://www.daniweb.com/forums/thread23883.html#

How to write console output to a txt file

I was wondering if you could list/examine what databases/objects are available to you in the Rails console. I know you can see them using other tools, I am just curious.
Thanks.

Rails: How to list database tables/objects using the Rails console?

I have a batch file that automates copying a bunch of files from one place to the other and back for me. Only thing is as much as it helps me I keep accidentally selecting that command off my command buffer and mass overwriting uncommitted changes. 

What code would I need for my .bat file to make it output &quot;**Are you sure?**&quot;, and make me type &lt;kbd&gt;Y&lt;/kbd&gt; before it ran the rest of the file?

If anything other than &lt;kbd&gt;Y&lt;/kbd&gt; is typed, it should exit execution on that line.

When I call `exit`, it closes `cmd.exe` which is not what I want.

How can I make an &quot;are you sure&quot; prompt in a Windows batch file?

I&#39;m new to script writing and can&#39;t get this one to work.  I could if I moved the files to a path without a space in it, but I&#39;d like it to work with the space if it could.  

I want to extract a bunch of Office updates to a folder with a .cmd file.  To make the batch file usable on any computer, I set a path variable which I only have to change in one place to run it on another machine.  The problem is that the path has a space in it.  If I put quotes around the path in the definition, cmd.exe puts them around the path before it appends the filename and switches and the batch fails with &quot;Command line syntax error.&quot;  Without quotes, it fails with, &quot;is not recognized as an internal or external command, operable program, or batch file.&quot;

For testing, I&#39;m using the help switch until or if I can get it working.  I can do it using an 8.3 file/folder name (e.g. My Documents as MyDocu~1), but can it be done a different way?

Set a path variable with spaces in the path in a Windows .cmd file or batch file

Can anybody help with effective and safe way of removing quotes from batch variables?

I have written a batch file which successfully imports a list of parameters %1, %2, %3 etc. and places them into named variables.  Some of these parameters contain multiple words, and therefor are enclosed in double quotes.

    &gt; &quot;Susie Jo&quot; (%1)  
    &gt; &quot;Smith Barnes&quot; (%2)  
    &gt; &quot;123 E. Main St.&quot; (%3)  

These %variables are next placed in named variables:

    &gt; set FirstName=%1  
    &gt; set LastName=%2  
    &gt; set ShipAddr=%3  

verification of variables is done by echo.
    &gt; echo.%FirstName%  
    &gt; echo.%LastName%  
    &gt; echo.%ShipAddr%  

results display as

    &quot;Susie Jo&quot;  
    &quot;Smith Barnes&quot;  
    &quot;123 E. Main St.&quot;  

I need to eliminate the included quotes on selected variables.  For instance, FirstName and LastName are used elsewhere and must not include quotes.

In a test batch file I was successful at eliminating quotes using the ~tilde character in variables.

    &gt; set FirstName=%~1
    &gt; set LastName=%~2 

I thought I had the solution, but I soon experienced unusual behavior with execution of batch files.  Suddenly CMD is no recognizing long path statments.  Normal execution of batch file from full path 

    &gt; C:\Documents and Settings\Administrator\My Documents\Txt\batchtest\dataout.bat
returns

    &gt; &#39;C:\Documents&#39; is not recognized as an internal or external command....
So it would appear that the addition of the ~tilde character to the in-coming %1 %2...%n variables has caused some change.  Possibly some environment variables have been altered?

I also tried clearing quotes from within variable with various attempts using the FOR command.  That seems awkward and I have been unable to learn how to accomplish this by creating a list of variable to perform the task:

something like this:

    for %%g in (%FirstName% %LastName%) do (
    set %%g=%%~g
    set %%h=%%~h
    set FirstName=%%~g
    set LastName=%%h
    echo.%FirstName% %LastName%
    )
I think I have two issues. 

1)  My &#39;short and sweet&#39; idea of inserting ~tilde in the incoming %1 %2 variables (%~1, etc) seems to have affected some settings and altered how CMD navigates long pathnames.

2)  I&#39;m still in search of a clean and easy way to eliminate quotes from selected named variables.  

Any help for those more experienced would be most appreciated.  I&#39;m at the end of my skills here... need some guidance please!

edit 12/26/2009 13:36 PST
entire batch file:

    
```
:: dataout.bat  
:: revision 12/25/2009 add ~tilde to incoming %variables to eliminate embedded &quot;quotation marks.  
:: writes address list using command line parameters  
:: writes data output list for QBooks IIF import  
:: writes Merchant Order data for RUI  
:: sample command line string for testing  
:: listmail[firstname][lastname][&quot;address string&quot;][&quot;city string&quot;][state][zip][Order#][PurchDate][Regname][&quot;FirstName LastName&quot;][TransactionID][PaymentMethod][Total][ProductID][Qty][Price_Each][PackPrep] [Shipping] [CommissionPmt] [Invoice#]  
:: example: dataout Bellewinkle Moose &quot;123 Green Forest Way&quot; &quot;Vancouver&quot; WA 98664 1004968 05/25/2009 &quot;Bellewinkle Moose&quot; &quot;Olive Oyl&quot; 101738 &quot;On Account&quot; 20.67 FK-1P 1 8.95 3.00 1.39 239  
@echo off  
cls  
c:  
cd\  
cd documents and settings\administrator\my documents\txt\batchtest  
echo processing %1 %2  
:VARISET  
:: Convert %n command line parameters to string variables  
set ($FirstName)=%~1  
set ($LastName)=%~2  
set ($BillingAddress1)=%~3  
set ($BillingCity)=%~4  
set ($BillingState)=%~5  
set ($BillingPostal)=%~6  
set ($OrderNumber)=%~7  
set ($Purch_Date)=%~8  
set ($RegistrationName)=%~9  
shift  
set ($TransactionID)=%~9  
shift  
set ($PaymentMethod)=%~9  
shift  
set ($Total)=%~9  
shift
set ($ProductIdentifier)=%~9  
shift  
set ($Quantity)=%~9  
shift  
set ($Price_Each)=%~9  
shift  
set ($Pack_Prep)=%~9  
shift  
set ($Shipping)=%~9  
shift  
set ($ServiceFee)=%~9  
shift  
set ($Discount)=%~9  
shift  
set ($Invoice)=%~9  
shift  
set ($UnitPrice)=%~9  
set _ShipCombName=%($FirstName)% %($LastName)%  
echo ship combo name is %_ShipCombName%  
pause  
:: write string varibables to logfile  
echo FN %($FirstName)% LN %($LastName)% BA %($BillingAddress1)% %($BillingCity)% %($BillingState)% %($BillingPostal)% %($OrderNumber)% %($Purch_Date)% %($RegistrationName)% %($TransactionID)% %($PaymentMethod)% %($Total)% %($ProductIdentifier)% %($Quantity)% %($Price_Each)% %($Pack_Prep)% %($Shipping)% %($ServiceFee)% %($Discount)% %($Invoice)% %($UnitPrice)% %_ShipCombName% &gt;&gt; d_out_log.txt  
:: Assign Account by Service Provider  
IF /i %($PaymentMethod)%==Amazon Receivables SET _QBAcct=Amazon.com  
:: 12-25-2009 added second Amazon pm&#39;t method for versatility  
IF /i %($PaymentMethod)%==Amazon SET _QBAcct=Amazon.com  
IF /i %($PaymentMethod)%==MAST SET _QBAcct=Auth/Net  
IF /i %($PaymentMethod)%==MasterCard SET _QBAcct=Auth/Net  
IF /i %($PaymentMethod)%==Visa SET _QBAcct=Auth/Net  
IF /i %($PaymentMethod)%==PayPal SET _QBAcct=PayPalPmts  
IF /i %($PaymentMethod)%==On Account SET _QBAcct=%($RegistrationName)%  
IF /i %($PaymentMethod)%==Mail SET _QBAcct=%($RegistrationName)%  
IF /i %($PaymentMethod)%==AMER SET _QBAcct=Auth/Net  
IF /i %($PaymentMethod)%==DISC SET _QBAcct=Auth/Net  
:: Assign Rep designator based on QBAccount  
IF /i %($PaymentMethod)%==Amazon Receivables SET _Rep=Amazon  
:: 12-25-2009 added second Amazon pm&#39;t method for versatility  
IF /i %($PaymentMethod)%==Amazon SET _Rep=Amazon  
IF /i %($PaymentMethod)%==MAST SET _Rep=BlueZap  
IF /i %($PaymentMethod)%==MasterCard SET _Rep=BlueZap  
IF /i %($PaymentMethod)%==Visa SET _Rep=BlueZap  
IF /i %($PaymentMethod)%==PayPal SET _Rep=BlueZap  
IF /i %($PaymentMethod)%==On Account SET _Rep=R B  
IF /i %($PaymentMethod)%==Mail SET _Rep=R B  
IF /i %($PaymentMethod)%==AMER SET _Rep=BlueZap  
IF /i %($PaymentMethod)%==DISC SET _Rep=BlueZap  
:: check for duplicate address data  
findstr /i /s &quot;%_ShipCombName%&quot; addrlist.txt  
echo errorlevel: %errorlevel%  
if errorlevel 1 goto :ADDRWRITE  
if errorlevel 0 goto :ADDRFOUND  
:ADDRWRITE  
echo %_ShipCombName% &gt;&gt; addrlist.txt  
echo %($BillingAddress1)% &gt;&gt; addrlist.txt  
echo %($BillingCity)% %($BillingState)% %($BillingPostal)% &gt;&gt; addrlist.txt  
echo. &gt;&gt; addrlist.txt  
echo Address File Written  
:ADDRFOUND  
echo selected rep is %_Rep%  
echo selected account is: %_QBAcct%  
pause  
:: RUI OUT  
:: write Merchant Order ID &amp; RUI Order ID to RUI  
:: check for duplicate RUI data in writeRUI.txt  
cd..  
cd RegKOut  
find /i &quot;%($OrderNumber)%&quot; writeRUI.txt  
echo errorlevel: %errorlevel%  
if errorlevel 1 goto :RUIWRITE  
if errorlevel 0 goto :IIFWRITE  
:RUIWRITE  
echo %($Invoice)%	%($OrderNumber)% &gt;&gt; writeRUI.txt  
:: end write RUI  
:: IIF OUT  
:IIFWRITE  
:: Check for duplicate invoice data in writeIIF.txt  
find /i &quot;%($OrderNumber)%&quot; writeIIF.txt  
echo errorlevel: %errorlevel%  
if errorlevel 1 goto :HEADWRITE  
if errorlevel 0 goto :LINEWRITE  
:HEADWRITE  
:: write Header, Ship/Handling, discount, Rep &amp; commission data to QB IIF import file  
echo %($OrderNumber)%	%($Purch_Date)%	Invoice	%($TransactionID)%	%_QBAcct%	Accounts Receivable				%($Total)%	%_Rep% &gt;&gt; writeIIF.txt    
echo 						H/P	%($Pack_Prep)%	1	? &gt;&gt; writeIIF.txt  
echo 						SHP	%($Shipping)%	1	? &gt;&gt; writeIIF.txt  
echo 						DISC	%($Discount)%	1	? &gt;&gt; writeIIF.txt  
echo 						Comm	%($ServiceFee)%	1	? &gt;&gt; writeIIF.txt  
:LINEWRITE  
IF /i %($ProductIdentifier)% equ PH-1 goto WRITE_DEFA ELSE goto WRITE_DISC  
echo %($ProductIdentifier)%  
:WRITE_DISC  
::writes discounted prices parsed from custom variable:  
echo 						%($ProductIdentifier)%	%($Price_Each)%	%($Quantity)%	? &gt;&gt; writeIIF.txt  
goto :EOF  
:WRITE_DEFA  
:writes default prices parsed from Product data  
echo 						%($ProductIdentifier)%	%($UnitPrice)%	%($Quantity)%	? &gt;&gt; writeIIF.txt  
goto :EOF  
:: 3-second delay  
:: TYPE NUL | CHOICE.COM /N /CY /TY,3 &gt;NUL  
:EOF  

```

Removing double quotes from variables in batch file creates problems with CMD environment

Say, there is a variable called `%pathtofolder%`, as it makes it clear it is a full path of a folder.

I want to delete every single file and subfolder in this directory, but not the directory itself.

But, there might be an error like &#39;this file/folder is already in use&#39;... when that happens, it should just continue and skip that file/folder.

Is there some command for this?



How to delete files/subfolders in a specific directory at the command prompt in Windows

How would you implement logical operators in DOS Batch files?

Content Type	Original Author	Original Content on Stackoverflow
Question	F.P	View Question on Stackoverflow
Solution 1 - Logging	Scott Mermelstein	View Answer on Stackoverflow
Solution 2 - Logging	Sergio	View Answer on Stackoverflow
Solution 3 - Logging	Kristina Brooks	View Answer on Stackoverflow

More lines in command window

Logging Problem Overview

Logging Solutions

Solution 1 - Logging

Solution 2 - Logging

Solution 3 - Logging

what is the best way to convert a json formatted key value pair to ruby hash with symbol as key?

How to swap the buffers in 2 windows emacs

Attributions