does not accept windows redirect commands

[rdeltour]

From [email protected] on August 07, 2008 20:27:03

PROBLEM: If the program is ran from the Windows command line, the output cannot be
re-directed to a text file. METHOD: What steps will reproduce the problem? 1. Run the program from the command line and add the redirect symbol and
the name of the file to re-direct output to.
Sample code: "java -jar epubcheck.jar file.epub > results.txt"
2. Press Enter RESULT: The output is displayed on screen, and the output file is created, but empty. EXPECTED: The output of the program that normally displays on screen should be inside
the output text file. PLATFORM: epubcheck RC 1

OS: Windows XP Service Pack 2 ADDITIONAL INFO: The results are the same if ran from a Windows batch file.
A sample batch file is attached.

Attachment: epubcheck.bat

Original issue: http://code.google.com/p/epubcheck/issues/detail?id=17

[rdeltour]

From [email protected] on August 11, 2008 09:55:22

i can get non-error outputs to go to a text file using '>>', but errors seem to go
straight to the screen and not show in the text file.

I'm calling the epubcheck tool from perl so i can process an entire directory, and
although its easy enough to copy and paste the errors, it would make life easier to
be able to pipe the error output.

Attachment: check.bat

[rdeltour]

From [email protected] on August 11, 2008 10:55:34

Hello,
Your problem occurs because by default, only stdout (standard output - System.out.print) is redirected by the
redirection arrow operator (>). Epubcheck, however, uses stderr (standard error output - System.err.print) to
display errors to console.
If you want to have stderr (only) redirected to file, use the error redirection arrow operator (2>) instead.
If you want to have both stdout and stderr in the file, use the redirection arrow operator (>), but add this as
an argument after the file name: 2>&1 This will let redirect both outs to your text file. For the sake of clarity,
here is an example:

STDOUT only:
java -jar epubcheck.jar test_epub.epub > logfile.txt

STDERR only:
java -jar epubcheck.jar test_epub.epub 2> logfile.txt

STDOUT & STDERR
java -jar epubcheck.jar test_epub.epub > logfile.txt 2>&1

Hope that solves your problem!

Piotr

Status: Invalid

[rdeltour]

From [email protected] on August 11, 2008 11:00:28

Thanks, it seems to work.

[rdeltour]

From [email protected] on August 11, 2008 09:55:22

i can get non-error outputs to go to a text file using '>>', but errors seem to go
straight to the screen and not show in the text file.

I'm calling the epubcheck tool from perl so i can process an entire directory, and
although its easy enough to copy and paste the errors, it would make life easier to
be able to pipe the error output.

Attachment: check.bat

[rdeltour]

From [email protected] on August 11, 2008 10:55:34

Hello,
Your problem occurs because by default, only stdout (standard output - System.out.print) is redirected by the
redirection arrow operator (>). Epubcheck, however, uses stderr (standard error output - System.err.print) to
display errors to console.
If you want to have stderr (only) redirected to file, use the error redirection arrow operator (2>) instead.
If you want to have both stdout and stderr in the file, use the redirection arrow operator (>), but add this as
an argument after the file name: 2>&1 This will let redirect both outs to your text file. For the sake of clarity,
here is an example:

STDOUT only:
java -jar epubcheck.jar test_epub.epub > logfile.txt

STDERR only:
java -jar epubcheck.jar test_epub.epub 2> logfile.txt

STDOUT & STDERR
java -jar epubcheck.jar test_epub.epub > logfile.txt 2>&1

Hope that solves your problem!

Piotr

Status: Invalid