Copy DOS screen after it's Displayed

[timrob]

Is there a way to copy a DOS screen to a text file via a batch file, after it's displayed in the command window?

I'm running a batch file, if one of the commands fails, I only want to log the DOS screen if it fails.

I know how to start a log from the beginning, but that's one more process I don't want to run if not necessary.

[BillRichardson]

Is there a way to copy a DOS screen to a text file via a batch file, after it's displayed in the command window?

C:\batch>type  timrob.bat

Code: [Select]

@echo off

type timrob.txt


echo.  >> timrob.txt

type timrob.txt  >>  timrob2.txt

echo. >>  timrob2.txt

type  timrob2.txt
Output:

C:\batch>timrob.bat

Copy DOS screen after it's Displayed



Is there a way to copy a DOS screen to a text file via a batch file,
after it's displayed in the command window?

I'm running a batch file, if one of the commands fails, I only want
to log the DOS screen if it fails.

I know how to start a log from the beginning, but that's one more
process I don't want to run if not necessary.
Copy DOS screen after it's Displayed



Is there a way to copy a DOS screen to a text file via a batch file,
after it's displayed in the command window?

I'm running a batch file, if one of the commands fails, I only want
to log the DOS screen if it fails.

I know how to start a log from the beginning, but that's one more
process I don't want to run if not necessary.

Copy DOS screen after it's Displayed



Is there a way to copy a DOS screen to a text file via a batch file,
after it's displayed in the command window?

I'm running a batch file, if one of the commands fails, I only want
to log the DOS screen if it fails.

I know how to start a log from the beginning, but that's one more
process I don't want to run if not necessary.


C:\batch>

[BillRichardson]

1) Point to Bar at top of screen, right click, choose select all
and then  choose copy
2) Paste to image editor and save
3) Upload to phobucket.com
4) Copy image code and paste image code  to here

[Helpmeh]

To check if a command fails, add this on the SAME LINE after the desired command.

&& Echo "INSERT COMMAND HERE" failed - %time% - %date% >errors.log

[Dusty]

Helpmeh - you sure about that?  Should the character not be || for failure?

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/ntcmds_shelloverview.mspx?mfr=true

&& Use to run the command following && only if the command preceding the symbol is successful. Cmd.exe runs the first command, and then runs the second command only if the first command completed successfully.

|| Use to run the command following || only if the command preceding || fails. Cmd.exe runs the first command, and then runs the second command only if the first command did not complete successfully (receives an error code greater than zero).

[Helpmeh]

Helpmeh - you sure about that?  Should the character not be || for failure?

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/ntcmds_shelloverview.mspx?mfr=true

Hmmm...I thought it was the other way around. Oh well, good for you for catching that.

[Salmon Trout]

Hmmm...I thought it was the other way around. Oh well, good for you for catching that.

How hard is it to test?

Code: [Select]

C:\>set test=eggs

C:\>echo %test% | find "eggs">nul && echo success
success

C:\>@echo %test% | find "bacon">nul || echo failure
failure

[Helpmeh]

How hard is it to test?

Code: [Select]

C:\>set test=eggs

C:\>echo %test% | find "eggs">nul && echo success
success

C:\>@echo %test% | find "bacon">nul || echo failure
failure

Well I don't think you can make batch scripts on an iPod Touch.

[Salmon Trout]

Well I don't think you can make batch scripts on an iPod Touch.

I guess... maybe one day you'll get a proper computer?

[timrob]

Helpmeh,
As an example, I used
Echo xcopy failed - %time% - %date% >errors.log
without the && and it works.  I don't know what the && are for.

I'll try to incorporate the new code into the batch file.  In my old code, to confirm the batch file was copying correctly, I was comparing the number of megabytes.  My way was a much longer way.

I was also using xcopy with /v. 

Bill,
I just get blank files with your code.

[Geek-9pm]

I am watching this thread. Does the OP really mean that he wants to capture the errors messages as a text file and he does not know where the error will occur?
And this all has to be in batch file and run without operator assistance? He wants something to read the text from the screen?
Can you do that inside of DOS?

[timrob]

I am watching this thread. Does the OP really mean that he wants to capture the errors messages as a text file and he does not know where the error will occur?
And this all has to be in batch file and run without operator assistance? He wants something to read the text from the screen?

  Yes, that's what I'm asking.  I don't know if it's possible.

[BillRichardson]

http://www.microsoft.com/resources/documentation/windows/xp/all/proddocs/en-us/redirection.mspx?mfr=true

Timrob:

Does the Timrob really mean that he wants to capture the errors messages
as a text file?


Standard Input, Standard Output, and Standard Error
When a command begins running, it usually expects that three files are
already open: standard input, standard output, and standard error
(sometimes called error output or diagnostic output). A number,
called a file descriptor, is associated with each of these files, as follows:
File descriptor 0  Standard input 
File descriptor 1  Standard output 
File descriptor 2  Standard error (diagnostic) output


Standard error, sometimes denoted as stderr, is where error messages go.
By default, this is your screen.


These default actions of input and output can be varied.


We can use a file as input and write results of a command to a file.
This is called input/output redirection, ">" or ">>" 

 

Use redirection, "2>", to a text file for the error message.

We can easily display a message to the screen from a text file.
The type command?
Notepad?


Redirection
You may be familiar with "redirection to NUL" to hide command output:

ECHO Hello world>NULwill show nothing on screen.
That's because >NUL redirects all Standard Output to the NUL device, which does nothing but discard it.

EHCO Hello world>NUL

[timrob]

Sorry, I misread your statement.  I meant I wanted to capture what ever is on the DOS screen.

[BillRichardson]

I meant I wanted to capture what ever is on the DOS screen.

Capture with redirection to a text file before a screen display. Do not allow a screen display.

( You may latter display the contents of the text file to the screen.)