Tar through java

I need to tar a text file through java using the UNIX tar. I tried using the Java class to compress the file, but the .tar.gz file generated cannot be decompressed. Is there a way or command I can execute so that I use the unix os tar command to compress the files.

Will be grateful if you could provide samples.

Thanks and regards
kohonenAsked:
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CEHJCommented:
>>I tried using the Java class to compress the file

Which one?
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girionisCommented:
Use the following:

Runtime.getRuntime.exec("tar -xvf mytar.tar");
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girionisCommented:
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TimYatesCommented:
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CEHJCommented:
You  may be better running an Ant task:

http://ant.apache.org/manual/CoreTasks/tar.html
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TimYatesCommented:
I use that tar package, and it seems to work fine :-)

Use it like Zip in java (write a TarEntry to a TarArchive object)
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TimYatesCommented:
> but the .tar.gz file generated cannot be decompressed

?!  Then, just write the tar file through a GZipOutputStream...  that doesn't work?

It should... (and it works the other way in my app)
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girionisCommented:
Bah... Tim I was ready to post the same link too :)
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TimYatesCommented:
:-)
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